email authentication

<!DOCTYPE html> <html lang="en-US"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale = 1.0, user-scalable=0" /> <link rel="profile" href="http://gmpg.org/xfn/11" /> <link rel="pingback" href="https://dmarc.org/xmlrpc.php" /> <title>email authentication – dmarc.org</title> <meta name='robots' content='max-image-preview:large' /> <link rel='dns-prefetch' href='//www.googletagmanager.com' /> <link rel='dns-prefetch' href='//fonts.googleapis.com' /> <link rel="alternate" type="application/rss+xml" title="dmarc.org » Feed" href="https://dmarc.org/feed/" /> <link rel="alternate" type="application/rss+xml" title="dmarc.org » Comments Feed" href="https://dmarc.org/comments/feed/" /> <link rel="alternate" type="application/rss+xml" title="dmarc.org » email authentication Tag Feed" href="https://dmarc.org/tag/email-authentication/feed/" /> <script type="text/javascript"> /* <![CDATA[ */ window._wpemojiSettings = {"baseUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/72x72\/","ext":".png","svgUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/svg\/","svgExt":".svg","source":{"concatemoji":"https:\/\/dmarc.org\/wp-includes\/js\/wp-emoji-release.min.js?ver=690c00815d284bc3881eccce686c00c8"}}; /*! This file is auto-generated */ !function(i,n){var o,s,e;function c(e){try{var t={supportTests:e,timestamp:(new Date).valueOf()};sessionStorage.setItem(o,JSON.stringify(t))}catch(e){}}function p(e,t,n){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);var t=new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data),r=(e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(n,0,0),new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data));return t.every(function(e,t){return e===r[t]})}function u(e,t,n){switch(t){case"flag":return n(e,"\ud83c\udff3\ufe0f\u200d\u26a7\ufe0f","\ud83c\udff3\ufe0f\u200b\u26a7\ufe0f")?!1:!n(e,"\ud83c\uddfa\ud83c\uddf3","\ud83c\uddfa\u200b\ud83c\uddf3")&&!n(e,"\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f","\ud83c\udff4\u200b\udb40\udc67\u200b\udb40\udc62\u200b\udb40\udc65\u200b\udb40\udc6e\u200b\udb40\udc67\u200b\udb40\udc7f");case"emoji":return!n(e,"\ud83d\udc26\u200d\u2b1b","\ud83d\udc26\u200b\u2b1b")}return!1}function f(e,t,n){var r="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?new OffscreenCanvas(300,150):i.createElement("canvas"),a=r.getContext("2d",{willReadFrequently:!0}),o=(a.textBaseline="top",a.font="600 32px Arial",{});return e.forEach(function(e){o[e]=t(a,e,n)}),o}function t(e){var t=i.createElement("script");t.src=e,t.defer=!0,i.head.appendChild(t)}"undefined"!=typeof Promise&&(o="wpEmojiSettingsSupports",s=["flag","emoji"],n.supports={everything:!0,everythingExceptFlag:!0},e=new Promise(function(e){i.addEventListener("DOMContentLoaded",e,{once:!0})}),new Promise(function(t){var n=function(){try{var e=JSON.parse(sessionStorage.getItem(o));if("object"==typeof e&&"number"==typeof e.timestamp&&(new Date).valueOf()<e.timestamp+604800&&"object"==typeof e.supportTests)return e.supportTests}catch(e){}return null}();if(!n){if("undefined"!=typeof Worker&&"undefined"!=typeof OffscreenCanvas&&"undefined"!=typeof URL&&URL.createObjectURL&&"undefined"!=typeof Blob)try{var e="postMessage("+f.toString()+"("+[JSON.stringify(s),u.toString(),p.toString()].join(",")+"));",r=new Blob([e],{type:"text/javascript"}),a=new Worker(URL.createObjectURL(r),{name:"wpTestEmojiSupports"});return void(a.onmessage=function(e){c(n=e.data),a.terminate(),t(n)})}catch(e){}c(n=f(s,u,p))}t(n)}).then(function(e){for(var t in e)n.supports[t]=e[t],n.supports.everything=n.supports.everything&&n.supports[t],"flag"!==t&&(n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&n.supports[t]);n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&!n.supports.flag,n.DOMReady=!1,n.readyCallback=function(){n.DOMReady=!0}}).then(function(){return e}).then(function(){var e;n.supports.everything||(n.readyCallback(),(e=n.source||{}).concatemoji?t(e.concatemoji):e.wpemoji&&e.twemoji&&(t(e.twemoji),t(e.wpemoji)))}))}((window,document),window._wpemojiSettings); /* ]]> */ </script> <style id='wp-emoji-styles-inline-css' type='text/css'> img.wp-smiley, img.emoji { display: inline !important; border: none !important; box-shadow: none !important; height: 1em !important; width: 1em !important; margin: 0 0.07em !important; vertical-align: -0.1em !important; background: none !important; padding: 0 !important; } </style> <link rel='stylesheet' id='wp-block-library-css' href='https://dmarc.org/wp-includes/css/dist/block-library/style.min.css?ver=690c00815d284bc3881eccce686c00c8' type='text/css' media='all' /> <style id='classic-theme-styles-inline-css' type='text/css'> /*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} </style> <style id='global-styles-inline-css' type='text/css'> body{--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);}:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}body .is-layout-flex{flex-wrap: wrap;align-items: center;}body .is-layout-flex > *{margin: 0;}body .is-layout-grid{display: grid;}body .is-layout-grid > *{margin: 0;}:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;} .wp-block-navigation a:where(:not(.wp-element-button)){color: inherit;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} .wp-block-pullquote{font-size: 1.5em;line-height: 1.6;} </style> <link rel='stylesheet' id='contact-form-7-css' href='https://dmarc.org/wp-content/plugins/contact-form-7/includes/css/styles.css?ver=5.7.7' type='text/css' media='all' /> <link rel='stylesheet' id='albar-google-font-body-css' href='//fonts.googleapis.com/css?family=Open+Sans%3A400%2C300%2C300italic%2C400italic%2C600%2C600italic%2C700%2C700italic&ver=10.1.1' type='text/css' media='all' /> <link rel='stylesheet' id='albar-google-font-heading-css' href='//fonts.googleapis.com/css?family=Roboto%3A400%2C300%2C300italic%2C400italic%2C500%2C500italic%2C700%2C700italic&ver=10.1.1' type='text/css' media='all' /> <link rel='stylesheet' id='albar-fontawesome-css' href='https://dmarc.org/wp-content/themes/albar/includes/font-awesome/css/font-awesome.css?ver=4.0.3' type='text/css' media='all' /> <link rel='stylesheet' id='albar-style-css' href='https://dmarc.org/wp-content/themes/albar/style.css?ver=10.1.1' type='text/css' media='all' /> <script type="text/javascript" src="https://dmarc.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1" id="jquery-core-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1" id="jquery-migrate-js"></script>   <script type="text/javascript" src="https://www.googletagmanager.com/gtag/js?id=GT-KVJKXZ9" id="google_gtagjs-js" async></script> <script type="text/javascript" id="google_gtagjs-js-after"> /* <![CDATA[ */ window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments);} gtag("set","linker",{"domains":["dmarc.org"]}); gtag("js", new Date()); gtag("set", "developer_id.dZTNiMT", true); gtag("config", "GT-KVJKXZ9"); /* ]]> */ </script>  <link rel="https://api.w.org/" href="https://dmarc.org/wp-json/" /><link rel="alternate" type="application/json" href="https://dmarc.org/wp-json/wp/v2/tags/51" /><link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://dmarc.org/xmlrpc.php?rsd" /> <meta name="generator" content="Site Kit by Google 1.124.0" /><style type="text/css" id="custom-background-css"> body.custom-background { background-color: #006699; } </style> <style type="text/css" media="screen"> body, .page-header h1, .alba-banner-heading h5, .alba-carousel-block, .alba-heading-text { color: #000000; font-family: 'Open Sans', sans-serif; } h1, h2, h3, h4, h5, h6, h1 a, h2 a, h3 a, h4 a, h5 a, h6 a { color: #006699; font-family: 'Roboto', sans-serif; } .alba-button, .post .alba-blog-permalink-btn, .search article.page .alba-blog-permalink-btn, .wpcf7-submit, #alba-home-slider-prev, #alba-home-slider-next, .alba-carousel-arrow-prev, .alba-carousel-arrow-next { background-color: #006699; } .site-header-one .site-title a, .site-header-two .site-title a, .site-header-one .site-top-bar i, .site-header-two .site-social i, .navigation-main li:hover > a, li.current_page_item > a, li.current_page_ancestor > a, .page-header .cx-breadcrumbs a, .sidebar-navigation-left .current_page_item, .sidebar-navigation-right .current_page_item, .entry-content a, .alba-blog-standard-block a, .widget ul li a, #comments .logged-in-as a, .alba-heading i, .alba-heading b, .alba-banner-heading h3 b { color: #006699; } .navigation-main li.current_page_item, .navigation-main li.current_page_ancestor { border-bottom: 2px solid #006699; } .navigation-main ul ul { border-top: 2px solid #006699; } .alba-button:hover, .wpcf7-submit:hover, .post .alba-blog-permalink-btn:hover, .search article.page .alba-blog-permalink-btn:hover, #alba-home-slider-prev:hover, #alba-home-slider-next:hover, .alba-carousel-arrow-prev:hover, .alba-carousel-arrow-next:hover { background-color: #3e578b; } .entry-content a:hover, h1 a:hover, h2 a:hover, h3 a:hover, h4 a:hover, h5 a:hover, h6 a:hover, .alba-blog-standard-block a:hover, #comments .logged-in-as a:hover, .widget .tagcloud a:hover, .sidebar-navigation ul li a:hover, .cx-breadcrumbs a:hover, .widget ul li a:hover { color: #3e578b; } .sidebar-navigation-left .current_page_item { box-shadow: 3px 0 0 #006699 inset; } .sidebar-navigation-right .current_page_item { box-shadow: -3px 0 0 #006699 inset; } </style> </head> <body class="archive tag tag-email-authentication tag-51 custom-background group-blog"> <div class="site-boxed"> <header id="masthead" class="site-header site-header-two bg-left" role="banner"> <div class="site-top-bar site-pad"> <div class="site-container"> <div class="site-top-bar-left"> </div> <div class="site-top-bar-right"> </div> <div class="clearboth"></div> </div> </div> <div class="header-bar site-pad"> <div class="site-container"> <div class="header-bar-inner"> <div class="site-branding"> <a href="https://dmarc.org/" title="dmarc.org" rel="home"><img src="https://dmarc.org/wp-content/uploads/2015/02/DMARC-2015-logo-small-202x110.png" alt="dmarc.org" /></a> </div> <div class="site-header-right"> <div class="site-social"> </div> <nav id="site-navigation" class="navigation-main" role="navigation"> <h1 class="menu-toggle">Menu</h1> <div class="menu-main-menu-container"><ul id="menu-main-menu" class="menu"><li id="menu-item-86" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-home menu-item-86"><a href="https://dmarc.org/">Home</a></li> <li id="menu-item-84" class="menu-item menu-item-type-post_type menu-item-object-page current_page_parent menu-item-84"><a href="https://dmarc.org/blog/">Blog</a></li> <li id="menu-item-85" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-85"><a href="https://dmarc.org/resources/">Resources</a> <ul class="sub-menu"> <li id="menu-item-97" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-97"><a href="https://dmarc.org/resources/articles-tutorials-and-videos/">Articles, Tutorials and Videos</a></li> <li id="menu-item-95" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-95"><a href="https://dmarc.org/resources/code-and-libraries/">Code and Libraries</a></li> <li id="menu-item-96" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-96"><a href="https://dmarc.org/resources/deployment-tools/">Deployment Tools</a></li> <li id="menu-item-373" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-373"><a href="https://dmarc.org/wiki/FAQ">FAQ</a> <ul class="sub-menu"> <li id="menu-item-374" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-374"><a href="https://dmarc.org/wiki/FAQ#general-questions">General Questions</a></li> <li id="menu-item-375" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-375"><a href="https://dmarc.org/wiki/FAQ#end-users">End User Questions</a></li> <li id="menu-item-376" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-376"><a href="https://dmarc.org/wiki/FAQ#receivers">Receiver Questions</a></li> <li id="menu-item-377" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-377"><a href="https://dmarc.org/wiki/FAQ#senders">Sender Questions</a></li> </ul> </li> <li id="menu-item-88" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-88"><a href="https://dmarc.org/overview/">Overview</a> <ul class="sub-menu"> <li id="menu-item-564" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-564"><a href="https://dmarc.org/who-is-using-dmarc/">Who Is Using DMARC?</a></li> </ul> </li> <li id="menu-item-94" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-94"><a href="https://dmarc.org/resources/products-and-services/">Products and Services</a></li> <li id="menu-item-98" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-98"><a href="https://dmarc.org/resources/specification/">Specifications</a></li> </ul> </li> <li id="menu-item-729" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-729"><a href="https://dmarc.org/stats/">Statistics</a> <ul class="sub-menu"> <li id="menu-item-1250" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1250"><a href="https://dmarc.org/stats/bimi/">Statistics – BIMI</a></li> <li id="menu-item-1249" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1249"><a href="https://dmarc.org/stats/dkim/">Statistics – DKIM</a></li> <li id="menu-item-1228" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-1228"><a href="https://dmarc.org/stats/dmarc/">Statistics – DMARC</a></li> <li id="menu-item-731" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-731"><a href="https://dmarc.org/stats/alexa-top-sites/">Alexa Top Web Sites (2015-2017)</a></li> </ul> </li> <li id="menu-item-90" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-90"><a href="https://dmarc.org/about/">About</a> <ul class="sub-menu"> <li id="menu-item-287" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-287"><a href="https://dmarc.org/about/sponsors/">Sponsors and Supporters</a></li> <li id="menu-item-293" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-293"><a href="https://dmarc.org/about/leadership/">Leadership</a></li> <li id="menu-item-286" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-286"><a href="https://dmarc.org/about/history/">History</a></li> </ul> </li> <li id="menu-item-89" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-89"><a href="https://dmarc.org/participate/">Participate</a></li> </ul></div> </nav> </div> <div class="clearboth"></div> </div> <div class="search-block"> <form role="search" method="get" class="search-form" action="https://dmarc.org/"> <label> <input type="search" class="search-field" placeholder="Search…" value="" name="s" title="Search for:" /> </label> <input type="submit" class="search-submit" value=" " /> </form> </div> </div> </div> <div class="clearboth"></div> </header> <div class="page-header"> <div class="site-container"> <h1> email authentication </h1> <div class="cx-breadcrumbs"> </div> </div> </div> <div class="site-body site-pad"> <div class="site-container"> <div id="primary" class="content-area"> <article id="post-1302" class="alba-blog-standard-block post-1302 post type-post status-publish format-standard hentry category-arc category-blog tag-arc tag-dmarc tag-email-authentication tag-filtering tag-forwarding tag-intermediaries tag-mailing-lists tag-microsoft tag-rfc7489 tag-rfc8617"> <div class="alba-blog-standard-block-imgs"> <div class="alba-blog-standard-block-img-carousel-wrapper alba-blog-standard-block-img-wrapper-remove"> <div class="alba-blog-standard-block-img-prev"></div> <div class="alba-blog-standard-block-img-next"></div> <div class="alba-blog-standard-block-img-carousel alba-blog-standard-block-img-remove"> <img src="https://dmarc.org/wp-content/uploads/2023/05/msft-using-arc-in-o365.png" alt="msft-using-arc-in-o365" /> </div> </div> </div> <div class="alba-blog-standard-block-content alba-blog-standard-has-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2023/02/microsoft-allows-365-admins-to-accept-arc-forwarders/" rel="bookmark">Microsoft Allows 365 Admins To Accept ARC Forwarders</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2023/02/microsoft-allows-365-admins-to-accept-arc-forwarders/" title="7:28 pm" rel="bookmark"><time class="entry-date published" datetime="2023-02-18T19:28:43-08:00">February 18, 2023</time><time class="updated" datetime="2023-05-21T19:30:14-07:00">May 21, 2023</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>Back in October 2019, Microsoft included ARC support in their Microsoft 365 Roadmap, stating that “[ARC] is now enabled for Office 365 hosted mailboxes.” But at that time it could only be used between Office 365 tenants, or from Microsoft’s in-house services. However in June of 2022 they made it possible for each tenant to […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/arc/" rel="category tag">ARC</a>, <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/arc/" rel="tag">ARC</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/filtering/" rel="tag">filtering</a>, <a href="https://dmarc.org/tag/forwarding/" rel="tag">forwarding</a>, <a href="https://dmarc.org/tag/intermediaries/" rel="tag">intermediaries</a>, <a href="https://dmarc.org/tag/mailing-lists/" rel="tag">mailing lists</a>, <a href="https://dmarc.org/tag/microsoft/" rel="tag">Microsoft</a>, <a href="https://dmarc.org/tag/rfc7489/" rel="tag">RFC7489</a>, <a href="https://dmarc.org/tag/rfc8617/" rel="tag">RFC8617</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2023/02/microsoft-allows-365-admins-to-accept-arc-forwarders/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-1112" class="alba-blog-standard-block post-1112 post type-post status-publish format-standard hentry category-blog category-press tag-adoption tag-announcements tag-dmarc tag-email-authentication tag-statistics"> <div class="alba-blog-standard-block-imgs"> <div class="alba-blog-standard-block-img-carousel-wrapper alba-blog-standard-block-img-wrapper-remove"> <div class="alba-blog-standard-block-img-prev"></div> <div class="alba-blog-standard-block-img-next"></div> <div class="alba-blog-standard-block-img-carousel alba-blog-standard-block-img-remove"> <img src="https://dmarc.org/wp-content/uploads/2021/10/DMARC-YoY-growth-2021q2-950x600-1.png" alt="DMARC-YoY-growth-2021q2-950x600" /> </div> </div> </div> <div class="alba-blog-standard-block-content alba-blog-standard-has-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2021/10/dmarc-policies-increase-28-through-june-2021/" rel="bookmark">DMARC policies increase 28% Through June 2021</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2021/10/dmarc-policies-increase-28-through-june-2021/" title="7:00 am" rel="bookmark"><time class="entry-date published" datetime="2021-10-11T07:00:48-07:00">October 11, 2021</time><time class="updated" datetime="2021-10-10T21:03:18-07:00">October 10, 2021</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>The number of valid DMARC policies observed in the DNS increased by 28% over the first half of 2021, to a total of 3.46 million, based on analysis of data supplied by Farsight Security. This was double the growth rate during the same period in 2020, when roughly 330,000 new records reflected a 17% increase […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a>, <a href="https://dmarc.org/category/press/" rel="category tag">Press Releases</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/adoption/" rel="tag">adoption</a>, <a href="https://dmarc.org/tag/announcements/" rel="tag">Announcements</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/statistics/" rel="tag">statistics</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2021/10/dmarc-policies-increase-28-through-june-2021/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-1014" class="alba-blog-standard-block post-1014 post type-post status-publish format-standard hentry category-blog tag-adoption tag-arc tag-cryptography tag-dmarc tag-email-authentication tag-ietf tag-japan tag-rfc"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2019/12/presentation-from-second-jpaawg-meeting-available/" rel="bookmark">Presentation from Second JPAAWG Meeting Available</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2019/12/presentation-from-second-jpaawg-meeting-available/" title="10:28 am" rel="bookmark"><time class="entry-date published" datetime="2019-12-20T10:28:00-08:00">December 20, 2019</time><time class="updated" datetime="2021-01-04T17:05:14-08:00">January 4, 2021</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/staff/" title="View all posts by Staff" rel="author">Staff</a></span></span> </div> </header> <div class="entry-content"> <p>The Japan Anti-Abuse Working Group (JPAAWG) held its second annual meeting in Tokyo, Japan on November 14th and 15th, 2019. DMARC.org director Steve Jones was invited to give a general update on DMARC and related matters, and the slides from that presentation are now available for download (with notes). The update covers a number of areas, including two new publications from the […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/adoption/" rel="tag">adoption</a>, <a href="https://dmarc.org/tag/arc/" rel="tag">ARC</a>, <a href="https://dmarc.org/tag/cryptography/" rel="tag">Cryptography</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/ietf/" rel="tag">IETF</a>, <a href="https://dmarc.org/tag/japan/" rel="tag">Japan</a>, <a href="https://dmarc.org/tag/rfc/" rel="tag">RFC</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2019/12/presentation-from-second-jpaawg-meeting-available/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-995" class="alba-blog-standard-block post-995 post type-post status-publish format-standard hentry category-blog tag-arc tag-dmarc tag-email-authentication tag-ietf tag-mailing-lists tag-rfc"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2019/07/arc-protocol-published-as-rfc-8617/" rel="bookmark">ARC Protocol Published as RFC 8617</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2019/07/arc-protocol-published-as-rfc-8617/" title="10:21 pm" rel="bookmark"><time class="entry-date published" datetime="2019-07-09T22:21:41-07:00">July 9, 2019</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/staff/" title="View all posts by Staff" rel="author">Staff</a></span></span> </div> </header> <div class="entry-content"> <p>The Authenticated Received Chain (ARC) was designed to address situations where email messages that are forwarded, and in some cases altered, will no longer pass email authentication checks. After spending 3 years as a work item in the IETF‘s DMARC Working Group, the specification was published as RFC 8617 (HTML, PDF, plain text) on July […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/arc/" rel="tag">ARC</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/ietf/" rel="tag">IETF</a>, <a href="https://dmarc.org/tag/mailing-lists/" rel="tag">mailing lists</a>, <a href="https://dmarc.org/tag/rfc/" rel="tag">RFC</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2019/07/arc-protocol-published-as-rfc-8617/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-990" class="alba-blog-standard-block post-990 post type-post status-publish format-standard hentry category-blog tag-adoption tag-arc tag-cryptography tag-dmarc tag-email-authentication tag-ietf tag-japan tag-rfc"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2019/02/presentation-from-first-jpaawg-meeting-available/" rel="bookmark">Presentation from First JPAAWG Meeting Available</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2019/02/presentation-from-first-jpaawg-meeting-available/" title="6:30 am" rel="bookmark"><time class="entry-date published" datetime="2019-02-20T06:30:48-08:00">February 20, 2019</time><time class="updated" datetime="2021-01-04T17:06:13-08:00">January 4, 2021</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>The Japan Anti-Abuse Working Group (JPAAWG) held its first meeting in Tokyo, Japan on November 8th, 2018. DMARC.org director Steve Jones was invited to give a general update on DMARC and related matters, and the slides from that presentation are now available for download. The update covers several areas of interest to people working to […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/adoption/" rel="tag">adoption</a>, <a href="https://dmarc.org/tag/arc/" rel="tag">ARC</a>, <a href="https://dmarc.org/tag/cryptography/" rel="tag">Cryptography</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/ietf/" rel="tag">IETF</a>, <a href="https://dmarc.org/tag/japan/" rel="tag">Japan</a>, <a href="https://dmarc.org/tag/rfc/" rel="tag">RFC</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2019/02/presentation-from-first-jpaawg-meeting-available/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-977" class="alba-blog-standard-block post-977 post type-post status-publish format-standard hentry category-blog tag-arc tag-dmarc tag-email-authentication tag-ietf tag-specification"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2018/10/version-18-of-arc-specification-published/" rel="bookmark">Version 18 of ARC Specification Published</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2018/10/version-18-of-arc-specification-published/" title="8:45 am" rel="bookmark"><time class="entry-date published" datetime="2018-10-08T08:45:42-07:00">October 8, 2018</time><time class="updated" datetime="2018-10-08T04:29:07-07:00">October 8, 2018</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>As first reported on the arc-spec.org website, on October 2nd the IETF’s DMARC Working Group published version 18 of the ARC specification document, incorporating the changes suggested during the Working Group Last Call (WGLC). There are many small language changes to clarify concepts or bring usage in line with other IETF documents, such as Email […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/arc/" rel="tag">ARC</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/ietf/" rel="tag">IETF</a>, <a href="https://dmarc.org/tag/specification/" rel="tag">specification</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2018/10/version-18-of-arc-specification-published/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-974" class="alba-blog-standard-block post-974 post type-post status-publish format-standard hentry category-blog tag-arc tag-dmarc tag-email-authentication tag-ietf tag-rfc tag-standards"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2018/09/working-group-completes-last-call-for-arc-specification/" rel="bookmark">Working Group Completes Last Call For ARC Specification</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2018/09/working-group-completes-last-call-for-arc-specification/" title="6:00 am" rel="bookmark"><time class="entry-date published" datetime="2018-09-28T06:00:56-07:00">September 28, 2018</time><time class="updated" datetime="2018-09-28T01:49:31-07:00">September 28, 2018</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>The DMARC Working Group has completed Last Call for the ARC specification. This means that when the final consensus changes are incorporated, the document will be submitted for approval and publication by the IETF. It is possible that the specification might be published before the next IETF meeting in November, though perhaps more likely between then […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/arc/" rel="tag">ARC</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/ietf/" rel="tag">IETF</a>, <a href="https://dmarc.org/tag/rfc/" rel="tag">RFC</a>, <a href="https://dmarc.org/tag/standards/" rel="tag">standards</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2018/09/working-group-completes-last-call-for-arc-specification/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-907" class="alba-blog-standard-block post-907 post type-post status-publish format-standard hentry category-blog tag-arc tag-email-authentication tag-hackathon tag-ietf tag-implementation"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2017/07/new-arc-implementations-at-ietf-99-hackathon/" rel="bookmark">New ARC Implementations at IETF 99 Hackathon</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2017/07/new-arc-implementations-at-ietf-99-hackathon/" title="2:40 am" rel="bookmark"><time class="entry-date published" datetime="2017-07-19T02:40:15-07:00">July 19, 2017</time><time class="updated" datetime="2017-07-19T02:47:47-07:00">July 19, 2017</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>An Authenticated Received Chain (ARC) table was organized at the weekend hackathon held before the IETF 99 meeting in Prague this week. ARC is an official work item of the IETF DMARC Working Group, and will be discussed during the working group meeting Thursday morning. Participants from two different vendors worked on new implementations of […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/arc/" rel="tag">ARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/hackathon/" rel="tag">hackathon</a>, <a href="https://dmarc.org/tag/ietf/" rel="tag">IETF</a>, <a href="https://dmarc.org/tag/implementation/" rel="tag">implementation</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2017/07/new-arc-implementations-at-ietf-99-hackathon/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-813" class="alba-blog-standard-block post-813 post type-post status-publish format-standard hentry category-blog category-press tag-adoption tag-asia tag-dmarc tag-email-authentication tag-europe tag-events tag-japan tag-statistics"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2016/11/dmarc-org-presenting-in-tokyo-nov-28th/" rel="bookmark">DMARC.org Presenting In Tokyo Nov 28th</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2016/11/dmarc-org-presenting-in-tokyo-nov-28th/" title="7:52 pm" rel="bookmark"><time class="entry-date published" datetime="2016-11-26T19:52:19-08:00">November 26, 2016</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>DMARC.org Executive Director Steven Jones will be speaking about email authentication at TwoFive, Inc’s Cloud and Messaging Day event in Tokyo on Monday, November 28th. Also appearing will be Heikki Gruner of Cloudmark, and anti-spam campaigner Neil Schwartzman. A panel discussion later in the program will also feature noted email experts Shuji Sakuraba and Ayachika […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a>, <a href="https://dmarc.org/category/press/" rel="category tag">Press Releases</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/adoption/" rel="tag">adoption</a>, <a href="https://dmarc.org/tag/asia/" rel="tag">Asia</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/europe/" rel="tag">Europe</a>, <a href="https://dmarc.org/tag/events/" rel="tag">events</a>, <a href="https://dmarc.org/tag/japan/" rel="tag">Japan</a>, <a href="https://dmarc.org/tag/statistics/" rel="tag">statistics</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2016/11/dmarc-org-presenting-in-tokyo-nov-28th/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <article id="post-793" class="alba-blog-standard-block post-793 post type-post status-publish format-standard hentry category-blog tag-announcements tag-dkim tag-dmarc tag-dns tag-dutch tag-email-authentication tag-germany tag-holland tag-phishing tag-policy tag-strategy tag-uk"> <div class="alba-blog-standard-block-content alba-blog-standard-no-images"> <header class="entry-header"> <h3 class="entry-title"><a href="https://dmarc.org/2016/11/united-kingdom-leading-the-way-in-email-security/" rel="bookmark">United Kingdom Leading The Way In Email Security</a></h3> <div class="entry-meta"> <i class="fa fa-calendar"></i> <a href="https://dmarc.org/2016/11/united-kingdom-leading-the-way-in-email-security/" title="3:16 am" rel="bookmark"><time class="entry-date published" datetime="2016-11-07T03:16:45-08:00">November 7, 2016</time></a><span class="byline"><span class="author vcard"> <i class="fa fa-user"></i> <a class="url fn n" href="https://dmarc.org/author/smj/" title="View all posts by Steve Jones" rel="author">Steve Jones</a></span></span> </div> </header> <div class="entry-content"> <p>The United Kingdom may have the most forward looking policies and deployment plans of any major government. Last week Chancellor of the Exchequer Philip Hammond announced a £1.9 billion national cyber security strategy that includes a broad series of measures, and will continue a series of improvements in email security that the UK government has […]</p> </div> <footer class="alba-blog-standard-post-footer"> <div class="alba-blog-standard-post-footer-left"> <span class="cat-links"> <i class="fa fa-list"></i> Posted in <a href="https://dmarc.org/category/blog/" rel="category tag">Blog</a> </span> <span class="tags-links"> <i class="fa fa-tags"></i> Tags <a href="https://dmarc.org/tag/announcements/" rel="tag">Announcements</a>, <a href="https://dmarc.org/tag/dkim/" rel="tag">DKIM</a>, <a href="https://dmarc.org/tag/dmarc/" rel="tag">DMARC</a>, <a href="https://dmarc.org/tag/dns/" rel="tag">DNS</a>, <a href="https://dmarc.org/tag/dutch/" rel="tag">Dutch</a>, <a href="https://dmarc.org/tag/email-authentication/" rel="tag">email authentication</a>, <a href="https://dmarc.org/tag/germany/" rel="tag">Germany</a>, <a href="https://dmarc.org/tag/holland/" rel="tag">Holland</a>, <a href="https://dmarc.org/tag/phishing/" rel="tag">phishing</a>, <a href="https://dmarc.org/tag/policy/" rel="tag">policy</a>, <a href="https://dmarc.org/tag/strategy/" rel="tag">strategy</a>, <a href="https://dmarc.org/tag/uk/" rel="tag">UK</a> </span> </div> <div class="alba-blog-standard-post-footer-right"> <a href="https://dmarc.org/2016/11/united-kingdom-leading-the-way-in-email-security/" class="alba-blog-permalink-btn">Read More</a> </div> <div class="clearboth"></div> </footer> </div> <div class="clearboth"></div> </article> <nav role="navigation" id="nav-below" class="navigation-paging"> <h1 class="screen-reader-text">Post navigation</h1> <div class="nav-previous"><a href="https://dmarc.org/tag/email-authentication/page/2/" ><span class="meta-nav">←</span> Older posts</a></div> </nav> </div> <div id="secondary" class="widget-area" role="complementary"> <aside id="search-2" class="widget widget_search"><form role="search" method="get" class="search-form" action="https://dmarc.org/"> <label> <input type="search" class="search-field" placeholder="Search…" value="" name="s" title="Search for:" /> </label> <input type="submit" class="search-submit" value=" " /> </form></aside> <aside id="recent-posts-2" class="widget widget_recent_entries"> <h1 class="widget-title">Recent Posts</h1> <ul> <li> <a href="https://dmarc.org/2024/10/dmarc-org-at-sixth-jpaawg-general-meeting/">DMARC.org at Sixth JPAAWG General Meeting</a> </li> <li> <a href="https://dmarc.org/2023/05/m3aawg-calls-for-coalition-to-support-public-suffix-list/">M3AAWG Calls for Coalition to Support Public Suffix List</a> </li> <li> <a href="https://dmarc.org/2023/02/microsoft-allows-365-admins-to-accept-arc-forwarders/">Microsoft Allows 365 Admins To Accept ARC Forwarders</a> </li> <li> <a href="https://dmarc.org/2022/12/dmarc-org-at-fifth-jpaawg-general-meeting/">DMARC.org at Fifth JPAAWG General Meeting</a> </li> <li> <a href="https://dmarc.org/2022/03/dmarc-policies-up-84-for-2021/">DMARC Policies Up 84% for 2021</a> </li> </ul> </aside><aside id="archives-2" class="widget widget_archive"><h1 class="widget-title">Archives</h1> <ul> <li><a href='https://dmarc.org/2024/10/'>October 2024</a></li> <li><a href='https://dmarc.org/2023/05/'>May 2023</a></li> <li><a href='https://dmarc.org/2023/02/'>February 2023</a></li> <li><a href='https://dmarc.org/2022/12/'>December 2022</a></li> <li><a href='https://dmarc.org/2022/03/'>March 2022</a></li> <li><a href='https://dmarc.org/2022/02/'>February 2022</a></li> <li><a href='https://dmarc.org/2022/01/'>January 2022</a></li> <li><a href='https://dmarc.org/2021/10/'>October 2021</a></li> <li><a href='https://dmarc.org/2021/02/'>February 2021</a></li> <li><a href='https://dmarc.org/2021/01/'>January 2021</a></li> <li><a href='https://dmarc.org/2020/11/'>November 2020</a></li> <li><a href='https://dmarc.org/2020/02/'>February 2020</a></li> <li><a href='https://dmarc.org/2019/12/'>December 2019</a></li> <li><a href='https://dmarc.org/2019/07/'>July 2019</a></li> <li><a href='https://dmarc.org/2019/02/'>February 2019</a></li> <li><a href='https://dmarc.org/2018/11/'>November 2018</a></li> <li><a href='https://dmarc.org/2018/10/'>October 2018</a></li> <li><a href='https://dmarc.org/2018/09/'>September 2018</a></li> <li><a href='https://dmarc.org/2018/02/'>February 2018</a></li> <li><a href='https://dmarc.org/2017/12/'>December 2017</a></li> <li><a href='https://dmarc.org/2017/11/'>November 2017</a></li> <li><a href='https://dmarc.org/2017/09/'>September 2017</a></li> <li><a href='https://dmarc.org/2017/07/'>July 2017</a></li> <li><a href='https://dmarc.org/2017/06/'>June 2017</a></li> <li><a href='https://dmarc.org/2017/03/'>March 2017</a></li> <li><a href='https://dmarc.org/2016/12/'>December 2016</a></li> <li><a href='https://dmarc.org/2016/11/'>November 2016</a></li> <li><a href='https://dmarc.org/2016/10/'>October 2016</a></li> <li><a href='https://dmarc.org/2016/08/'>August 2016</a></li> <li><a href='https://dmarc.org/2016/07/'>July 2016</a></li> <li><a href='https://dmarc.org/2016/06/'>June 2016</a></li> <li><a href='https://dmarc.org/2016/05/'>May 2016</a></li> <li><a href='https://dmarc.org/2016/03/'>March 2016</a></li> <li><a href='https://dmarc.org/2016/02/'>February 2016</a></li> <li><a href='https://dmarc.org/2016/01/'>January 2016</a></li> <li><a href='https://dmarc.org/2015/12/'>December 2015</a></li> <li><a href='https://dmarc.org/2015/11/'>November 2015</a></li> <li><a href='https://dmarc.org/2015/10/'>October 2015</a></li> <li><a href='https://dmarc.org/2015/09/'>September 2015</a></li> <li><a href='https://dmarc.org/2015/08/'>August 2015</a></li> <li><a href='https://dmarc.org/2015/07/'>July 2015</a></li> <li><a href='https://dmarc.org/2015/06/'>June 2015</a></li> <li><a href='https://dmarc.org/2015/04/'>April 2015</a></li> <li><a href='https://dmarc.org/2015/03/'>March 2015</a></li> <li><a href='https://dmarc.org/2015/02/'>February 2015</a></li> <li><a href='https://dmarc.org/2015/01/'>January 2015</a></li> <li><a href='https://dmarc.org/2014/12/'>December 2014</a></li> <li><a href='https://dmarc.org/2014/02/'>February 2014</a></li> <li><a href='https://dmarc.org/2013/02/'>February 2013</a></li> <li><a href='https://dmarc.org/2012/10/'>October 2012</a></li> <li><a href='https://dmarc.org/2012/01/'>January 2012</a></li> </ul> </aside> </div> </div> </div> <div class="clearboth"></div> <footer id="colophon" class="site-footer" role="contentinfo"> <div class="footer-bottom-bar site-pad"> <div class="site-container"> <div class="scroll-to-top"><i class="fa fa-angle-up"></i></div>  <div class="footer-left"> Unless otherwise noted, all content on this website is (<a href="http://creativecommons.org/licenses/by/3.0/">CC By 3.0</a>) by DMARC.org </div> <div class="footer-right"> </div> <div class="clearboth"></div> </div> </div> </footer> </div> <script type="text/javascript" src="https://dmarc.org/wp-content/plugins/contact-form-7/includes/swv/js/index.js?ver=5.7.7" id="swv-js"></script> <script type="text/javascript" id="contact-form-7-js-extra"> /* <![CDATA[ */ var wpcf7 = {"api":{"root":"https:\/\/dmarc.org\/wp-json\/","namespace":"contact-form-7\/v1"}}; /* ]]> */ </script> <script type="text/javascript" src="https://dmarc.org/wp-content/plugins/contact-form-7/includes/js/index.js?ver=5.7.7" id="contact-form-7-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-content/themes/albar/js/navigation.js?ver=10.1.1" id="albar-navigation-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-content/themes/albar/js/jquery.carouFredSel-6.2.1-packed.js?ver=10.1.1" id="albar-caroufredSel-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-content/themes/albar/js/waypoints.min.js?ver=10.1.1" id="albar-waypoints-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-content/themes/albar/js/waypoints-sticky.min.js?ver=10.1.1" id="albar-waypoints-sticky-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-content/themes/albar/js/custom.js?ver=10.1.1" id="albar-customjs-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-content/themes/albar/js/skip-link-focus-fix.js?ver=10.1.1" id="albar-skip-link-focus-fix-js"></script> <script type="text/javascript" src="https://www.google.com/recaptcha/api.js?render=6LcBkJIUAAAAAHY8LeuV-omUtdVUjTQY3gJtQ2Rr&ver=3.0" id="google-recaptcha-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-includes/js/dist/vendor/wp-polyfill-inert.min.js?ver=3.1.2" id="wp-polyfill-inert-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-includes/js/dist/vendor/regenerator-runtime.min.js?ver=0.14.0" id="regenerator-runtime-js"></script> <script type="text/javascript" src="https://dmarc.org/wp-includes/js/dist/vendor/wp-polyfill.min.js?ver=3.15.0" id="wp-polyfill-js"></script> <script type="text/javascript" id="wpcf7-recaptcha-js-extra"> /* <![CDATA[ */ var wpcf7_recaptcha = {"sitekey":"6LcBkJIUAAAAAHY8LeuV-omUtdVUjTQY3gJtQ2Rr","actions":{"homepage":"homepage","contactform":"contactform"}}; /* ]]> */ </script> <script type="text/javascript" src="https://dmarc.org/wp-content/plugins/contact-form-7/modules/recaptcha/index.js?ver=5.7.7" id="wpcf7-recaptcha-js"></script> </body> </html>

CINXE.COM

email authentication – dmarc.org