螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (SMTP) | 螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓螘螠螤

<!DOCTYPE html> <html lang="el" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# schema: http://schema.org/ sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema# "> <head> <meta charset="utf-8" /> <script>var _paq = _paq || [];(function(){var u=(("https:" == document.location.protocol) ? "https://matomo.noc.ntua.gr/" : "http://matomo.noc.ntua.gr/");_paq.push(["setSiteId", "1"]);_paq.push(["setTrackerUrl", u+"matomo.php"]);_paq.push(["setDoNotTrack", 1]);_paq.push(["trackPageView"]);_paq.push(["setIgnoreClasses", ["no-tracking","colorbox"]]);_paq.push(["enableLinkTracking"]);var d=document,g=d.createElement("script"),s=d.getElementsByTagName("script")[0];g.type="text/javascript";g.defer=true;g.async=true;g.src=u+"matomo.js";s.parentNode.insertBefore(g,s);})();</script> <meta name="Generator" content="Drupal 8 (https://www.drupal.org)" /> <meta name="MobileOptimized" content="width" /> <meta name="HandheldFriendly" content="true" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link rel="shortcut icon" href="/files/favicon.ico" type="image/vnd.microsoft.icon" /> <link rel="alternate" hreflang="el" href="http://www.noc.ntua.gr/el/service/smtp" /> <link rel="canonical" href="http://www.noc.ntua.gr/el/service/smtp" /> <link rel="shortlink" href="http://www.noc.ntua.gr/el/node/12" /> <link rel="revision" href="http://www.noc.ntua.gr/el/service/smtp" /> <title>螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (SMTP) | 螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓螘螠螤</title> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/align.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/fieldgroup.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/container-inline.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/clearfix.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/details.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/hidden.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/item-list.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/js.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/nowrap.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/position-container.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/progress.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/reset-appearance.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/resize.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/sticky-header.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/system-status-counter.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/system-status-report-counters.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/system-status-report-general-info.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/tablesort.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/system/css/components/tree-child.module.css?sn752k" /> <link rel="stylesheet" media="all" href="/core/modules/views/css/views.module.css?sn752k" /> <link rel="stylesheet" media="all" href="https://cdn.jsdelivr.net/npm/bootstrap@3.4.1/dist/css/bootstrap.css" integrity="sha256-0XAFLBbK7DgQ8t7mRWU5BF2OMm9tjtfH945Z7TTeNIo=" crossorigin="anonymous" /> <link rel="stylesheet" media="all" href="https://cdn.jsdelivr.net/npm/@unicorn-fail/drupal-bootstrap-styles@0.0.1/dist/3.4.0/8.x-3.x/drupal-bootstrap.css" integrity="sha512-RUOeVmsTRyTAbl6b8I+bazmSEhlTmS2Dt58NMpOvED7LJ6qy4CnfSoVoHcQw4a1uFYNxzaeDUbD7lQ/7Vo7OTg==" crossorigin="anonymous" /> <link rel="stylesheet" media="all" href="/themes/noc/css/style.css?sn752k" /> <link rel="stylesheet" media="all" href="/themes/noc/css/noc.css?sn752k" /> <link rel="stylesheet" media="all" href="/themes/noc/css/colors.css?sn752k" /> <link rel="stylesheet" media="all" href="//fonts.googleapis.com/css?family=Open+Sans|Roboto|Anonymous+Pro|Comfortaa|Didact+Gothic|Noto+Sans|Ubuntu" /> <link rel="stylesheet" media="all" href="/themes/noc/external/smartmenus-1.0.1/addons/bootstrap/jquery.smartmenus.bootstrap.css?sn752k" /> <link rel="stylesheet" media="all" href="/themes/noc/external/font-awesome-4.7.0/css/font-awesome.min.css?sn752k" />  </head> <body class="fontyourface path-node page-node-type-service-page has-glyphicons"> <a href="#main-content" class="visually-hidden focusable skip-link"> Skip to main content </a> <div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas> <div class="container-fluid" id="canvas"> <div class="row" id="header"> <div class="col-xs-12"> <div class="row"> <header class="navbar navbar-inverse container-fluid" id="banner" role="banner"> <div class="navbar-header"> <a href="http://www.ntua.gr" title="螘胃谓喂魏蠈螠蔚蟿蟽蠈尾喂慰螤慰位蠀蟿蔚蠂谓蔚委慰" target="_blank"><img id="ntualogo" class="pull-left" src="/themes/noc/images/pyrforos_big_simplified.svg" /></a> <div class="region region-navigation"> <a class="logo navbar-btn pull-left" href="/el" title="螒蟻蠂喂魏萎" rel="home"> <img src="/themes/noc/logo.svg" alt="螒蟻蠂喂魏萎" /> </a> <a class="name navbar-brand" href="/el" title="螒蟻蠂喂魏萎" rel="home">螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓螘螠螤</a> </div> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> </div> <div id="nocnavbar" class="navbar-collapse collapse pull-right"> <div class="region region-navigation-collapsible"> <nav role="navigation" aria-labelledby="block-noc-main-menu-menu" id="block-noc-main-menu"> <h2 class="sr-only" id="block-noc-main-menu-menu">Main navigation</h2> <ul class="menu nav navbar-nav"> <li class="expanded dropdown"> <a href="" class="dropdown-toggle" data-target="#" data-toggle="dropdown">违蟺畏蟻蔚蟽委蔚蟼<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li class="expanded dropdown"> <a href="#" class="dropdown-toggle" data-target="#" data-toggle="dropdown">螖喂魏蟿蠉慰蠀未蔚未慰渭苇谓蠅谓<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li class="expanded dropdown"> <a href="#" class="dropdown-toggle" data-target="#" data-toggle="dropdown">螕蔚谓喂魏苇蟼<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="/service/Directory">违蟺畏蟻蔚蟽委伪魏伪蟿伪位蠈纬慰蠀</a> </li> <li> <a href="/service/map.ntua.gr">螚位蔚魏蟿蟻慰谓喂魏蠈蟼蠂维蟻蟿畏蟼螤慰位蠀蟿蔚蠂谓蔚喂慰蠉蟺慰位畏蟼螙蠅纬蟻维蠁慰蠀</a> </li> <li> <a href="/service/ftp.ntua.gr">螘尉蠀蟺畏蟻蔚蟿畏蟿萎蟼渭蔚蟿伪尾委尾伪蟽畏蟼伪蟻蠂蔚委蠅谓 (ftp.ntua.gr)</a> </li> <li> <a href="/service/www.ntua.gr">螝蔚谓蟿蟻喂魏蠈蟼喂蟽蟿蠈蟿慰蟺慰蟼螘螠螤</a> </li> <li> <a href="/service/RSS">RSS feeds</a> </li> </ul> </li> <li class="expanded dropdown"> <a href="#" class="dropdown-toggle" data-target="#" data-toggle="dropdown">围蟻畏蟽蟿蠋谓<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="/service/Wi-Fi">危蠉谓未蔚蟽畏蟽蟿慰伪蟽蠉蟻渭伪蟿慰未委魏蟿蠀慰 (Wi-Fi)</a> </li> <li> <a href="/service/Connect to data network">危蠉谓未蔚蟽畏蟽蟿慰未委魏蟿蠀慰未蔚未慰渭苇谓蠅谓</a> </li> <li> <a href="/service/mycourses">螜蟽蟿慰蟽蔚位委未蔚蟼渭伪胃畏渭维蟿蠅谓 (mycourses.ntua.gr)</a> </li> <li> <a href="/service/VPN">危蠉谓未蔚蟽畏渭苇蟽蠅蔚喂魏慰谓喂魏慰蠉喂未喂蠅蟿喂魏慰蠉未喂魏蟿蠉慰蠀 (VPN)</a> </li> <li> <a href="/service/E-mail">螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (e-mail)</a> </li> <li> <a href="/service/Teleteaching">螒委胃慰蠀蟽蔚蟼蟿畏位蔚魏蟺伪委未蔚蠀蟽畏蟼魏伪喂蟺慰位蠀渭苇蟽蠅谓</a> </li> <li> <a href="/service/my">螤蟻慰蟽蠅蟺喂魏萎伪蟿味苇谓蟿伪 (my.ntua.gr)</a> </li> <li> <a href="/service/lists.ntua.gr">螞委蟽蟿蔚蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (lists.ntua.gr)</a> </li> <li> <a href="/service/users.ntua.gr">螤蟻慰蟽蠅蟺喂魏苇蟼喂蟽蟿慰蟽蔚位委未蔚蟼 (users.ntua.gr)</a> </li> <li> <a href="/service/login.ntua.gr">违蟺畏蟻蔚蟽委伪蟿伪蠀蟿慰蟺慰委畏蟽畏蟼蠂蟻畏蟽蟿蠋谓</a> </li> <li> <a href="/service/e-signature">违蟺畏蟻蔚蟽委伪畏位蔚魏蟿蟻慰谓喂魏萎蟼蠀蟺慰纬蟻伪蠁萎蟼</a> </li> </ul> </li> <li class="expanded dropdown"> <a href="#" class="dropdown-toggle" data-target="#" data-toggle="dropdown">螖喂伪蠂蔚喂蟻喂蟽蟿蠋谓<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="/service/DNS">违蟺畏蟻蔚蟽委伪慰谓慰渭伪蟿慰位慰纬委伪蟼 (DNS)</a> </li> <li> <a href="/service/Virtual DNS">违蟺畏蟻蔚蟽委伪蔚喂魏慰谓喂魏萎蟼慰谓慰渭伪蟿慰位慰纬委伪蟼 (virtual DNS)</a> </li> <li> <a href="/service/Web Hosting">桅喂位慰尉蔚谓委伪喂蟽蟿慰蟽蔚位委未蠅谓 (web hosting)</a> </li> <li> <a href="/service/Virtual e-mail">违蟺畏蟻蔚蟽委伪蔚喂魏慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (virtual e-mail)</a> </li> <li> <a href="/service/SMTP">螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (SMTP)</a> </li> <li> <a href="/service/SSO">违蟺畏蟻蔚蟽委伪蔚谓喂伪委伪蟼蟺蟻蠈蟽尾伪蟽畏蟼 (SSO)</a> </li> <li> <a href="/service/Security">螒蟽蠁维位蔚喂伪未喂魏蟿蠉慰蠀</a> </li> <li> <a href="/service/NTP">危蠀纬蠂蟻慰谓喂蟽渭蠈蟼蠀蟺慰位慰纬喂蟽蟿蠋谓 (NTP)</a> </li> <li> <a href="/service/Server hosting">桅喂位慰尉蔚谓委伪蠀蟺慰位慰纬喂蟽蟿喂魏蠋谓蟽蠀蟽蟿畏渭维蟿蠅谓 (server hosting)</a> </li> <li> <a href="/service/Certificates">螆魏未慰蟽畏蠄畏蠁喂伪魏蠋谓蟺喂蟽蟿慰蟺慰喂畏蟿喂魏蠋谓</a> </li> </ul> </li> </ul> </li> <li class="expanded dropdown"> <a href="#" class="dropdown-toggle" data-target="#" data-toggle="dropdown">螖喂魏蟿蠉慰蠀蠁蠅谓萎蟼<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="/service/Voice connect">危蠉谓未蔚蟽畏蟽蟿慰蟿畏位蔚蠁蠅谓喂魏蠈未委魏蟿蠀慰蟿慰蠀螘螠螤</a> </li> <li> <a href="/service/Voice mail">螛蠀蟻委未蔚蟼蠁蠅谓畏蟿喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (voice mail)</a> </li> <li> <a href="/service/Voice charges">韦畏位蔚蠁蠅谓喂魏苇蟼蠂蟻蔚蠋蟽蔚喂蟼</a> </li> <li> <a href="/service/Directory info">螤位畏蟻慰蠁慰蟻委蔚蟼魏伪蟿伪位蠈纬慰蠀</a> </li> <li> <a href="/service/Call universities">韦畏位蔚蠁蠅谓喂魏萎魏位萎蟽畏蠂蠅蟻委蟼蠂蟻苇蠅蟽畏蟺蟻慰蟼维位位伪螒螘螜</a> </li> </ul> </li> </ul> </li> <li> <a href="/el/announcements" data-drupal-link-system-path="announcements">螒谓伪魏慰喂谓蠋蟽蔚喂蟼</a> </li> <li> <a href="/el/applications" data-drupal-link-system-path="applications">螒喂蟿萎蟽蔚喂蟼</a> </li> <li class="expanded dropdown"> <a href="" class="dropdown-toggle" data-target="#" data-toggle="dropdown">围蟻萎蟽喂渭伪<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li class="expanded dropdown"> <a href="" class="dropdown-toggle" data-target="#" data-toggle="dropdown">违蟺畏蟻蔚蟽委蔚蟼蟿蟻委蟿蠅谓<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="https://helios.ntua.gr">helios.ntua.gr</a> </li> <li> <a href="https://eudoxus.gr/StudentBookSelection">螘蠉未慰尉慰蟼</a> </li> <li> <a href="https://academicid.minedu.gov.gr/">螒魏伪未畏渭伪蠆魏萎蟿伪蠀蟿蠈蟿畏蟿伪</a> </li> <li> <a href="https://delos365.grnet.gr/">螖螚螞螣危 365</a> </li> </ul> </li> <li class="expanded dropdown"> <a href="" class="dropdown-toggle" data-target="#" data-toggle="dropdown">螘蟻纬伪位蔚委伪<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="http://www.noc.ntua.gr/Shibboleth.sso/Login?target=http%3A//www.noc.ntua.gr&amp%3BforceAuthn=true" title="螘位苇纬尉蟿蔚蟿畏谓蔚纬魏蠀蟻蠈蟿畏蟿伪蟿慰蠀 username 魏伪喂蟿慰蠀 password 蟽伪蟼">螖慰魏喂渭萎位慰纬伪蟻喂伪蟽渭慰蠉</a> </li> <li> <a href="http://old.ntua.gr/nmc/traceroute.html" title="螘魏蟿苇位蔚蟽畏蔚谓蟿慰位萎蟼 traceroute">Remote traceroute</a> </li> <li> <a href="http://old.ntua.gr/nmc/nettest/whois.html" title="螤位畏蟻慰蠁慰蟻委蔚蟼魏伪蟿蠈蠂慰蠀未喂魏蟿蠀伪魏萎蟼未喂蔚蠉胃蠀谓蟽畏蟼">WHOIS query</a> </li> </ul> </li> </ul> </li> <li class="expanded dropdown"> <a href="" class="dropdown-toggle" data-target="#" data-toggle="dropdown">危蠂蔚蟿喂魏维<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="/el/ked" data-drupal-link-system-path="node/1">螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓</a> </li> <li class="expanded dropdown"> <a href="" class="dropdown-toggle" data-target="#" data-toggle="dropdown">违蟺慰未慰渭萎<span class="caret"></span></a> <ul class="menu dropdown-menu nocdropdown"> <li> <a href="/el/data-network-infrastructure" data-drupal-link-system-path="node/261">螖委魏蟿蠀慰螖蔚未慰渭苇谓蠅谓</a> </li> <li> <a href="/el/voice-network-infrastructure" data-drupal-link-system-path="node/262">螖委魏蟿蠀慰桅蠅谓萎蟼</a> </li> </ul> </li> <li> <a href="/el/services-statistics" data-drupal-link-system-path="services-statistics">危蟿伪蟿喂蟽蟿喂魏维</a> </li> <li> <a href="/el/partners" data-drupal-link-system-path="node/326">危蠀谓蔚蟻纬维蟿蔚蟼</a> </li> </ul> </li> <li> <a href="/el/helpdesk" data-drupal-link-system-path="node/263">螘蟺喂魏慰喂谓蠅谓委伪</a> </li> </ul> </nav> </div> </div> </header> </div> <div class="row" style="min-height:100px;"> <div class="col-xs-12 col-sm-8 col-lg-5 col-lg-offset-1"> </div> </div> <div class="row"> <div id="noccontact" class="col-xs-12 pull-right"> <div class="region region-phone-mail-region"> <section id="block-nocshortcontactinfo-2" class="block block-block-content block-block-content7a589bdf-5565-47cb-9734-c1b01bd74e3b clearfix"> <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><div class="pull-right" style="width:180px;margin-top:5px;"> <div style="float:left;margin:5px 5px 0 0;"> <span class="glyphicon glyphicon-phone-alt" aria-hidden="true"></span><br/><span class="glyphicon glyphicon-envelope" aria-hidden="true"></span> </div> <div style="float:left;text-align:left;margin-top:5px;"> +30 210 772 1871<br/> <a href="mailto:help-voice@noc.ntua.gr" title="螖委魏蟿蠀慰蠁蠅谓萎蟼">help-voice@noc.ntua.gr</a> </div> </div> <div class="pull-right" style="width:180px;margin-top:5px;"> <div style="float:left;margin:5px 5px 0 0;"> <span class="glyphicon glyphicon-phone-alt" aria-hidden="true"></span><br/><span class="glyphicon glyphicon-envelope" aria-hidden="true"></span> </div> <div style="float:left;text-align:left;margin-top:5px;"> +30 210 772 1861<br/> <a href="mailto:help-data@noc.ntua.gr" title="螖委魏蟿蠀慰未蔚未慰渭苇谓蠅谓">help-data@noc.ntua.gr</a> </div> </div></div> </section> </div> </div> </div> </div> </div> <div role="main" id="main" class="row main-container container-fluid js-quickedit-main-content"> <div class="row"> <aside class="hidden-xs col-sm-3 col-md-2" role="complementary"> <div class="region region-sidebar-first"> <section class="views-element-container block block-views block-views-blockcenatral-tools-view-block-1 clearfix" id="block-views-block-cenatral-tools-view-block-1-2"> <div class="form-group"><div class="view view-cenatral-tools-view view-id-cenatral_tools_view view-display-id-block_1 view-dom-id-b21e2d069fe4f6fcfbc3426af70e0d4c205b9495abe3a32d32286633aab2bdcd"> <div class="view-content"> <div class="row"> <div class="col-xs-12" > <div class="row spacer"> </div> <div class="row" id="services"> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="http://webmail.ntua.gr" target="_blank"> <div class="col-xs-12 smalltoolregion lightblue"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-envelope"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>webmail</h5> </div> </div> </div> </a> </div> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="http://mycourses.ntua.gr" target="_blank"> <div class="col-xs-12 smalltoolregion p1blue13"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-book"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>mycourses</h5> </div> </div> </div> </a> </div> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="http://my.ntua.gr" target="_blank"> <div class="col-xs-12 smalltoolregion p1blue23"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-calendar"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>my.ntua.gr</h5> </div> </div> </div> </a> </div> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="/el/teleteaching-guide" target="_blank"> <div class="col-xs-12 smalltoolregion cutered"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-facetime-video"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>teleteaching</h5> </div> </div> </div> </a> </div> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="http://register.noc.ntua.gr/" target="_blank"> <div class="col-xs-12 smalltoolregion p1blue23"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-modal-window"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>register</h5> </div> </div> </div> </a> </div> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="http://www.noc.ntua.gr/Shibboleth.sso/Login?target=http%3A//www.noc.ntua.gr&amp;forceAuthn=true" target="_blank"> <div class="col-xs-12 smalltoolregion photoblue"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-log-in"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>login.ntua.gr</h5> </div> </div> </div> </a> </div> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="http://my.ntua.gr" target="_blank"> <div class="col-xs-12 smalltoolregion lightblue"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-phone-alt"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>myphone</h5> </div> </div> </div> </a> </div> <div class="col-xs-12 col-lg-10 col-lg-offset-1" > <a href="https://www.ntua.gr/el/contact/directory-service" target="_blank"> <div class="col-xs-12 smalltoolregion p1blue13"> <div class="row" style="margin-top:5px;"> <div class="col-xs-3 col-xl-4" style="padding-right:0;text-align:right;"> <h5><span class="glyphicon glyphicon-user"></span></h5> </div> <div class="col-xs-9 col-xl-8" style="text-align:left;"> <h5>directory</h5> </div> </div> </div> </a> </div> </div> </div> </div> </div> </div> </div> </section> </div> </aside> <section class="col-sm-9 col-md-8 mainsection"> <div class="row spacer"> </div> <div "col-sm-12" role="heading"> <div class="region region-header"> <div data-drupal-messages-fallback class="hidden"></div> <h3 class="page-header" style="border:0;"><span>螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (SMTP)</span> </h3> </div> </div> <div class="row"> <div class="xs-hidden col-md-6 col-lg-9"></div> <div class="region region-help-faq-service"> <div id="helplink" class="top-link pull-right"> <div class="form-group"><div class="view view-help-top-link view-id-help_top_link view-display-id-block_1 view-dom-id-b6ebb727a9322ee64108a319e63998415ddce56dab2909356bcf3fc6e05e2132"> <div class="view-content"> <div class="views-row"><a href="/help/SMTP" title="螣未畏纬委蔚蟼"> <div class="hfibutton photoblue"> <h4> <i class="fa fa-info" aria-hidden="true"></i>  </h4> </div> <div class="hfibuttontitle"> 螣未畏纬委蔚蟼 </div> </a></div> </div> </div> </div> </div> <div id="servicepagelink" class="top-link pull-right"> <div class="form-group"><div class="view view-service-page-top-link view-id-service_page_top_link view-display-id-block_1 view-dom-id-c40de332655b7981f788d92e20a1898a6a10eb737c8f3ac781febca2346135b8"> </div> </div> </div> </div> </div> <div class="spacer"></div> <a id="main-content"></a> <div class="region region-content"> <article data-history-node-id="12" role="article" about="/el/service/smtp" class="service-page full clearfix"> <div class="content"> <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><p>韦慰螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓蟿慰蠀螘.螠.螤. 未喂伪蠂蔚喂蟻委味蔚蟿伪喂蟿畏尾伪蟽喂魏萎蠀蟺畏蟻蔚蟽委伪蟿慰蠀畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (e-mail service) 蟽蟿慰未委魏蟿蠀慰蟿慰蠀螘.螠.螤. 畏慰蟺慰委伪蠂蠅蟻委味蔚蟿伪喂蟽蔚未蠉慰蔚蟺委蟺蔚未伪, 蟺蟻蠋蟿慰谓蟽蔚蠀蟺畏蟻蔚蟽委蔚蟼蟺慰蠀蟺伪蟻苇蠂慰谓蟿伪喂伪蟺蠈蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼蟿慰蠀未喂魏蟿蠉慰蠀魏伪喂未蔚蠉蟿蔚蟻慰谓蟽蔚蠀蟺畏蟻蔚蟽委蔚蟼蟺慰蠀蟺伪蟻苇蠂慰谓蟿伪喂伪蟺蠈蟽蠀蟽蟿萎渭伪蟿伪蟽蟿伪蔚蟺喂渭苇蟻慰蠀蟼蠀蟺慰未委魏蟿蠀伪魏伪喂蟽蟿伪慰蟺慰委伪苇蠂蔚喂蟺伪蟻伪蠂蠅蟻畏胃蔚委 (delegate) 渭苇蟻慰蟼蟿畏蟼未喂伪蠂蔚委蟻喂蟽畏蟼.</p> <p><strong>螘喂未喂魏蠈蟿蔚蟻伪:</strong></p> <ul> <li>韦慰螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓未喂伪蠂蔚喂蟻委味蔚蟿伪喂蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀. 螘委谓伪喂蟺蔚蟻喂蟽蟽蠈蟿蔚蟻慰喂伪蟺蠈苇谓伪蟼纬喂伪魏伪位蠉蟿蔚蟻畏魏伪蟿伪谓慰渭萎蠁慰蟻蟿委慰蠀 (load balancing) 魏伪喂未蠀谓伪蟿蠈蟿畏蟿伪维渭蔚蟽畏蟼伪谓蟿喂渭蔚蟿蠋蟺喂蟽畏蟼伪蟽蟿慰蠂喂蠋谓蟽蔚魏维蟺慰喂慰伪蟺蠈蟿伪蟽蠀蟽蟿萎渭伪蟿伪 (fault tolerance). 螒蟺伪谓蟿慰蠉谓蟽蟿喂蟼未喂蔚蠀胃蠉谓蟽蔚喂蟼 <strong>achilles.noc.ntua.gr (147.102.222.210)</strong>, <strong>diomedes.noc.ntua.gr (147.102.222.220)</strong> 魏伪喂 <strong>ulysses.noc.ntua.gr (147.102.222.230)</strong> 魏伪胃蠋蟼魏伪喂蟽蟿喂蟼魏慰喂谓苇蟼未喂蔚蠀胃蠉谓蟽蔚喂蟼 <strong>relay.ntua.gr</strong> 魏伪喂 <strong>smtp.ntua.gr</strong> (渭蔚蠂蟻萎蟽畏蟺慰位位伪蟺位蠋谓 A 魏伪喂螒螒螒螒 records). H 未喂伪魏委谓畏蟽畏蟿蠅谓渭畏谓蠀渭维蟿蠅谓畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀伪蟺蠈魏伪喂蟺蟻慰蟼蟿慰委未蟻蠀渭伪纬委谓蔚蟿伪喂 <strong>伪蟺慰魏位蔚喂蟽蟿喂魏维</strong> 渭苇蟽蠅蟿蠅谓蟽蠀纬魏蔚魏蟻喂渭苇谓蠅谓蔚尉蠀蟺畏蟻蔚蟿畏蟿蠋谓 (SMTP mail gateways/relays). 螚蟽蠀纬魏蔚魏蟻喂渭苇谓畏蟺慰位喂蟿喂魏萎蔚蠁伪蟻渭蠈味蔚蟿伪喂渭蔚蟽蠂蔚蟿喂魏蠈蟺蔚蟻喂慰蟻喂蟽渭蠈 (access list) 蟽蟿慰谓魏蔚谓蟿蟻喂魏蠈未蟻慰渭慰位慰纬畏蟿萎蟿慰蠀未喂魏蟿蠉慰蠀蟿慰蠀喂未蟻蠉渭伪蟿慰蟼. 危魏慰蟺蠈蟼蟿畏蟼蔚委谓伪喂畏蟺蟻慰蟽蟿伪蟽委伪蟿畏蟼蠀蟺畏蟻蔚蟽委伪蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (魏伪喂蟺蟻慰蟼蟿喂蟼未蠉慰魏伪蟿蔚蠀胃蠉谓蟽蔚喂蟼) 伪蟺蠈蠁伪喂谓蠈渭蔚谓伪魏伪魏萎蟼蠂蟻萎蟽畏蟼 (伪谓蔚蟺喂胃蠉渭畏蟿畏伪位位畏位慰纬蟻伪蠁委伪/spam, 蔚蟺喂魏委谓未蠀谓伪蟺蟻慰纬蟻维渭渭伪蟿伪/viruses, 蟺伪蟻伪尾委伪蟽畏蟽蠀蟽蟿畏渭维蟿蠅谓魏位蟺.) 魏伪喂蟺伪蟻慰蠂萎蠀蟺畏蟻蔚蟽委伪蟼 backup MX 纬喂伪蟿慰蠀蟼蟿慰蟺喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀蟿慰蠀喂未蟻蠉渭伪蟿慰蟼.</li> <br /> <li>螒蟺蠈蟿畏谓蟺位蔚蠀蟻维蟿慰蠀蟼慰喂蟿慰蟺喂魏慰委蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀, 伪谓维危蠂慰位萎, 韦渭萎渭伪萎螘蟻纬伪蟽蟿萎蟻喂慰, 蔚委谓伪喂蠀蟺蔚蠉胃蠀谓慰喂纬喂伪蟿畏谓伪蟺慰蟽蟿慰位萎魏伪喂蟺伪蟻伪位伪尾萎蟿蠅谓畏位蔚魏蟿蟻慰谓喂魏蠋谓渭畏谓蠀渭维蟿蠅谓蟽蟿慰蔚魏维蟽蟿慰蟿蔚蟿慰蟺喂魏蠈蠀蟺慰未委魏蟿蠀慰. 韦伪渭畏谓蠉渭伪蟿伪蟺慰蠀伪蟺慰蟽蟿苇位位慰谓蟿伪喂蔚魏蟿蠈蟼蟿慰蠀蟿慰蟺喂魏慰蠉蠀蟺慰未喂魏蟿蠉慰蠀蟺蟻慰蠅胃慰蠉谓蟿伪喂魏伪蟿伪位位萎位蠅蟼蟽蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼蠋蟽蟿蔚谓伪渭蟺慰蟻苇蟽慰蠀谓谓伪魏伪蟿伪位萎尉慰蠀谓蟽蟿慰蠀蟼蟺伪蟻伪位萎蟺蟿蔚蟼蟿慰蠀蟼蔚谓蟿蠈蟼魏伪喂魏蠀蟻委蠅蟼蔚魏蟿蠈蟼蟿慰蠀未喂魏蟿蠉慰蠀蟿慰蠀喂未蟻蠉渭伪蟿慰蟼. 螒谓伪位蠀蟿喂魏苇蟼慰未畏纬委蔚蟼纬喂伪蟿畏蟻蠉胃渭喂蟽畏蟿蠅谓蟿慰蟺喂魏蠋谓蔚尉蠀蟺畏蟻蔚蟿畏蟿蠋谓畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀渭蟺慰蟻蔚委蟿蔚谓伪尾蟻蔚委蟿蔚伪魏慰位慰蠀胃蠋谓蟿伪蟼蟿慰蟽蠉谓未蔚蟽渭慰渭蔚蟿慰谓蟿委蟿位慰 <a href="/help/SMTP">"螣未畏纬委蔚蟼围蟻萎蟽畏蟼"</a> 蟽蟿畏谓魏慰蟻蠀蠁萎蟿畏蟼蟽蔚位委未伪蟼.</li> </ul> <p>韦慰蟺蟻蠅蟿蠈魏慰位位慰蟺慰蠀蠂蟻畏蟽喂渭慰蟺慰喂蔚委蟿伪喂 - 蟺维谓蟿伪蟽蔚蟺蔚蟻喂尾维位位慰谓 TCP/IP - 纬喂伪蟿畏谓蠀蟺畏蟻蔚蟽委伪畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀蔚委谓伪喂蟿慰 SMTP/ESMTP. 韦慰位慰纬喂蟽渭喂魏蠈蟺慰蠀蠂蔚喂蟻委味蔚蟿伪喂蟿伪渭畏谓蠉渭伪蟿伪蔚委谓伪喂蟿慰 <a href="http://www.sendmail.org/">Sendmail</a> 蟽蔚蟽蠀谓未蠀伪蟽渭蠈渭蔚慰蟻喂蟽渭苇谓伪蔚蟺喂蟺位苇慰谓蔚蟺喂魏慰蠀蟻喂魏维蟺蟻慰纬蟻维渭渭伪蟿伪 (sendmail milters).</p> <p><a><strong>Antispamming</strong></a></p> <p>危蟿伪蟺位伪委蟽喂伪蟿畏蟼蠀蟺畏蟻蔚蟽委伪蟼, 纬委谓蔚蟿伪喂蟺蟻慰蟽蟺维胃蔚喂伪蟺蔚蟻喂慰蟻喂蟽渭慰蠉蟿慰蠀蠁伪喂谓慰渭苇谓慰蠀 spamming, 伪谓蔚蟺喂胃蠉渭畏蟿畏渭畏谓蠉渭伪蟿伪蔚渭蟺慰蟻喂魏慰蠉萎未喂伪蠁畏渭喂蟽蟿喂魏慰蠉蟺蔚蟻喂蔚蠂慰渭苇谓慰蠀, 渭蔚蟿畏蠂蟻萎蟽畏蟽蠂蔚蟿喂魏蠋谓伪谓蟿委渭蔚蟿蟻蠅谓蟿伪慰蟺慰委伪蟺蔚蟻喂位伪渭尾维谓慰蠀谓:</p> <ul> <li>蠂蟻萎蟽畏未喂伪胃苇蟽喂渭蠅谓 DNS-based Blackhole Lists 魏伪喂魏伪蟿维位位畏位慰蠀位慰纬喂蟽渭喂魏慰蠉蟽蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀. 围蟻畏蟽喂渭慰蟺慰喂慰蠉谓蟿伪喂慰喂伪魏蠈位慰蠀胃蔚蟼位委蟽蟿蔚蟼: <ul type="square"> <li>sbl-xbl.spamhaus.org</li> <li>list.dsbl.org</li> <li>bl.spamcop.net</li> <li>dnsbl.sorbs.net</li> </ul> </li> <br /> <li>蠂蟻萎蟽畏蟿慰蠀蔚蟺喂魏慰蠀蟻喂魏慰蠉蟺蟻慰纬蟻维渭渭伪蟿慰蟼 <a href="http://www.milter.info/sendmail/milter-limit/">milter-limit</a> 纬喂伪蟿慰谓蟺蔚蟻喂慰蟻喂蟽渭蠈蟿慰蠀蟺位萎胃慰蠀蟼蟿蠅谓渭畏谓蠀渭维蟿蠅谓蟺慰蠀渭蟺慰蟻蔚委谓伪蟽蟿蔚委位蔚喂苇谓伪蟼蠀蟺慰位慰纬喂蟽蟿萎蟼蟽蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼伪谓维渭慰谓维未伪蠂蟻蠈谓慰蠀 (渭蔚蟻喂魏维位蔚蟺蟿维, 蠋蟻伪, 畏渭苇蟻伪). 危魏慰蟺蠈蟼蟿慰蠀蟽蠀纬魏蔚魏蟻喂渭苇谓慰蠀渭苇蟿蟻慰蠀蔚委谓伪喂畏伪蟺慰蠁蠀纬萎蠁伪喂谓慰渭苇谓蠅谓魏伪魏萎蟼蠂蟻萎蟽畏蟼蟿畏蟼蠀蟺畏蟻蔚蟽委伪蟼伪蟺蠈渭慰位蠀蟽渭苇谓伪蟽蠀蟽蟿萎渭伪蟿伪蟺慰蠀蔚位苇纬蠂慰谓蟿伪喂伪蟺蠈魏伪魏蠈尾慰蠀位慰蠀蟼蟿蟻委蟿慰蠀蟼魏伪喂蠂蟻畏蟽喂渭慰蟺慰喂慰蠉谓蟿伪喂纬喂伪蟿畏渭伪味喂魏萎伪蟺慰蟽蟿慰位萎未蔚魏维未蠅谓蠂喂位喂维未蠅谓渭畏谓蠀渭维蟿蠅谓蟽蔚伪谓蠉蟺慰蟺蟿慰蠂蟻蠈谓慰. 韦慰蟿蟻苇蠂慰谓蠈蟻喂慰苇蠂蔚喂蟿蔚胃蔚委蟽蟿伪 100 渭畏谓蠉渭伪蟿伪蟿畏谓畏渭苇蟻伪伪谓维魏蔚谓蟿蟻喂魏蠈蔚尉蠀蟺畏蟻蔚蟿畏蟿萎. 螒蟺蠈蟿慰谓蟺蔚蟻喂慰蟻喂蟽渭蠈伪蠀蟿蠈蔚尉伪喂蟻慰蠉谓蟿伪喂慰喂蟿慰蟺喂魏慰委蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀危蠂慰位蠋谓魏伪喂螘蟻纬伪蟽蟿畏蟻委蠅谓.</li> <br /> <li>蠂蟻萎蟽畏蟿慰蠀蔚蟺喂魏慰蠀蟻喂魏慰蠉蟺蟻慰纬蟻维渭渭伪蟿慰蟼 <a href="http://www.milter.info/sendmail/milter-ahead/">milter-ahead</a> 纬喂伪蟿慰谓蔚谓蟿蠅谓蟺蟻慰蟿苇蟻蠅谓苇位蔚纬蠂慰蟿畏蟼蠉蟺伪蟻尉畏蟼渭喂伪蟼畏位蔚魏蟿蟻慰谓喂魏萎蟼未喂蔚蠉胃蠀谓蟽畏蟼蟺蟻喂谓蟿畏谓伪蟺慰未慰蠂萎蔚谓蠈蟼渭畏谓蠉渭伪蟿慰蟼伪蟺蠈蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼. 螘蠁伪蟻渭蠈味蔚蟿伪喂蟽蟿喂蟼蟽蠀谓未苇蟽蔚喂蟼蟺慰蠀蟺蟻慰苇蟻蠂慰谓蟿伪喂伪蟺蠈蟿慰未喂伪未委魏蟿蠀慰魏伪喂苇蠂蔚喂蟽魏慰蟺蠈蟿慰谓蟺蔚蟻喂慰蟻喂蟽渭蠈蟿慰蠀蠁伪喂谓慰渭苇谓慰蠀蟿慰蠀 <a href="http://en.wikipedia.org/wiki/Backscatter#Backscatter_of_email_spam">email backscatter</a>.</li> <br /> <li>蟻蠀胃渭委蟽蔚喂蟼蟽蟿慰位慰纬喂蟽渭喂魏蠈 sendmail: <ul type="square"> <li>纬喂伪蟿慰谓苇位蔚纬蠂慰蟿慰蠀蟻蠀胃渭慰蠉蟽蠀谓未苇蟽蔚蠅谓魏伪喂蟿慰蠀蟺位萎胃慰蠀蟼蟿伪蠀蟿蠈蠂蟻慰谓蠅谓蟽蠀谓未苇蟽蔚蠅谓 (rate/connection control).</li> <li>蠂蟻萎蟽畏蟿畏蟼位蔚喂蟿慰蠀蟻纬委伪蟼 greet_pause 纬喂伪蟿喂蟼蟽蠀谓未苇蟽蔚喂蟼蟺慰蠀蟺蟻慰苇蟻蠂慰谓蟿伪喂伪蟺蠈蟿慰未喂伪未委魏蟿蠀慰.</li> </ul> </li> <li>蠂蟻萎蟽畏蟿慰蠀位慰纬喂蟽渭喂魏慰蠉 <a href="http://spamassassin.apache.org/">SpamAssassin</a> 纬喂伪蟿畏谓伪谓委蠂谓蔚蠀蟽畏蟿蠅谓渭畏谓蠀渭维蟿蠅谓 spam. To Spam螒ssassin 蠂蟻畏蟽喂渭慰蟺慰喂蔚委蟺位萎胃慰蟼渭蔚胃蠈未蠅谓魏伪喂蟿蔚蠂谓喂魏蠋谓纬喂伪蟿畏谓伪尉喂慰位蠈纬畏蟽畏蟿蠅谓渭畏谓蠀渭维蟿蠅谓魏伪喂伪谓伪位蠈纬蠅蟼胃苇蟿蔚喂蟽蔚魏维胃蔚渭萎谓蠀渭伪苇谓伪 score. 螘维谓蟿慰 score 蔚委谓伪喂渭蔚纬伪位蠉蟿蔚蟻慰伪蟺蠈 5.0 蟿蠈蟿蔚蟿慰渭萎谓蠀渭伪渭伪蟻魏维蟻蔚蟿伪喂蠅蟼 spam (渭蟺伪委谓蔚喂畏苇谓未蔚喂尉畏 "*****SPAM*****" 蟽蟿慰 subject 魏伪喂蟺蟻慰蟽蟿委胃慰谓蟿伪喂蔚蟺喂蟺位蔚蠈谓 headers 蠈蟺蠅蟼慰喂 X-Spam-Flag, X-Spam-Status, X-Spam-Level 魏伪喂 X-Spam-Report 蟺慰蠀渭蟺慰蟻慰蠉谓蟽蟿畏蟽蠀谓苇蠂蔚喂伪谓伪蠂蟻畏蟽喂渭慰蟺慰喂畏胃慰蠉谓伪蟺蠈蠁委位蟿蟻伪蟿慰蠀蟺伪蟻伪位萎蟺蟿畏纬喂伪蟿畏谓魏伪蟿伪蠂蠋蟻畏蟽畏蟿慰蠀渭畏谓蠉渭伪蟿慰蟼蟽蔚尉蔚蠂蠅蟻喂蟽蟿蠈蠁维魏蔚位慰).</li> </ul> <p><img src="http://www.noc.ntua.gr/sites/default/files/images/general/clam-200.png" /></p> <p><a><strong>Antivirus</strong></a></p> <p>To 螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓苇蠂蔚喂蟺蟻慰蠂蠅蟻萎蟽蔚喂蟽蟿畏谓蔚谓蔚蟻纬慰蟺慰委畏蟽畏蟽蠀蟽蟿萎渭伪蟿慰蟼 antivirus 蟽蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼畏位蔚魏蟿蟻慰谓喂魏萎蟼伪位位畏位慰纬蟻伪蠁委伪蟼蟿慰蠀喂未蟻蠉渭伪蟿慰蟼. 危魏慰蟺蠈蟼蟿慰蠀蟽蠀蟽蟿萎渭伪蟿慰蟼蔚委谓伪喂畏蟺蟻慰蟽蟿伪蟽委伪蟿蠅谓蠂蟻畏蟽蟿蠋谓蟿慰蠀未喂魏蟿蠉慰蠀伪蟺蠈 <a href="http://en.wikipedia.org/wiki/Malicious_software">魏伪魏蠈尾慰蠀位伪蟺蟻慰纬蟻维渭渭伪蟿伪</a> (<a href="http://en.wikipedia.org/wiki/Virus_%28computing%29">喂慰蠉蟼</a>, <a href="http://en.wikipedia.org/wiki/Worm_program">worms</a>, <a href="http://en.wikipedia.org/wiki/Trojan_horse_%28computing%29">trojans</a> 魏位蟺) 萎伪蟺蠈蟺伪蟻伪蟺位伪谓畏蟿喂魏维渭畏谓蠉渭伪蟿伪 (<a href="http://en.wikipedia.org/wiki/Phishing">phishing messages</a>) 蟺慰蠀蠂蟻畏蟽喂渭慰蟺慰喂慰蠉谓蟿畏谓蠀蟺畏蟻蔚蟽委伪蟿慰蠀畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (e-mail) 纬喂伪谓伪渭蔚蟿伪未慰胃慰蠉谓渭蔚渭伪味喂魏蠈蟿蟻蠈蟺慰.</p> <p>韦慰蟽蠉蟽蟿畏渭伪蟽蟿畏蟻委味蔚蟿伪喂蟽蟿慰伪谓慰喂魏蟿蠈位慰纬喂蟽渭喂魏蠈 <a href="http://www.clamav.net/">Clam AntiVirus (ClamAV)</a> 魏伪喂蟽蔚渭喂伪蔚蠀蟻蔚委伪魏慰喂谓蠈蟿畏蟿伪蔚胃蔚位慰谓蟿蠋谓蠂蟻畏蟽蟿蠋谓蟿慰蠀未喂魏蟿蠉慰蠀蟺慰蠀 <a href="http://www.clamav.net/sendvirus.html">伪谓伪蠁苇蟻慰蠀谓维渭蔚蟽伪</a> 谓苇伪魏蟻慰蠉蟽渭伪蟿伪喂蠋谓. 韦伪渭慰位蠀蟽渭苇谓伪渭畏谓蠉渭伪蟿伪伪蟺慰蟻蟻委蟺蟿慰谓蟿伪喂伪蟺蠈蟿慰蠀蟼魏蔚谓蟿蟻喂魏慰蠉蟼蔚尉蠀蟺畏蟻蔚蟿畏蟿苇蟼畏位蔚魏蟿蟻慰谓喂魏萎蟼伪位位畏位慰纬蟻伪蠁委伪蟼蟽蔚蔚蟺委蟺蔚未慰蟺蟻蠅蟿慰魏蠈位位慰蠀 SMTP (5.7.1 SMTP error) 魏伪喂蔚谓畏渭蔚蟻蠋谓蔚蟿伪喂慰蔚尉蠀蟺畏蟻蔚蟿畏蟿萎蟼畏位蔚魏蟿蟻慰谓喂魏萎蟼伪位位畏位慰纬蟻伪蠁委伪蟼蟺慰蠀蔚蟺喂蠂蔚委蟻畏蟽蔚谓伪蟿慰蟺伪蟻伪未蠋蟽蔚喂蟽蔚伪蠀蟿慰蠉蟼. 韦慰渭萎谓蠀渭伪位维胃慰蟼蟺蔚蟻喂位伪渭尾维谓蔚喂蟿慰蠈谓慰渭伪蟿慰蠀喂慰蠉蟺慰蠀伪谓喂蠂谓蔚蠉蟿畏魏蔚. 螕喂伪蟺伪蟻维未蔚喂纬渭伪:</p> <p>聽</p> <blockquote><code>5.7.1 virus Eicar-Test-Signature detected by ClamAV - http://www.clamav.net/.</code></blockquote> <p>韦慰渭苇纬喂蟽蟿慰渭苇纬蔚胃慰蟼蟿蠅谓渭畏谓蠀渭维蟿蠅谓蟺慰蠀蔚位苇纬蠂慰谓蟿伪喂伪蟺蠈蟿慰蟽蠉蟽蟿畏渭伪 antivirus 蔚委谓伪喂 1 螠螔. 韦慰蠈蟻喂慰伪蠀蟿蠈苇蠂蔚喂蟿蔚胃蔚委纬喂伪蟿畏谓蟺蟻慰蟽蟿伪蟽委伪蟿慰蠀蟽蠀蟽蟿萎渭伪蟿慰蟼伪蟺蠈蠀蟺蔚蟻蠁蠈蟻蟿蠅蟽畏, 魏伪胃蠋蟼蔚蟺委蟽畏蟼魏伪喂蔚蟺蔚喂未萎蟽蟿伪蟿喂蟽蟿喂魏维苇蠂蔚喂未蔚喂蠂胃蔚委蠈蟿喂蟿伪渭慰位蠀蟽渭苇谓伪渭畏谓蠉渭伪蟿伪蔚委谓伪喂蟺慰位蠉渭喂魏蟻蠈蟿蔚蟻伪伪蟺蠈伪蠀蟿蠈. 危蟿伪渭畏谓蠉渭伪蟿伪蟺慰蠀魏蟻委谓慰谓蟿伪喂伪蟽蠁伪位萎蟺蟻慰蟽蟿委胃蔚谓蟿伪喂未蠉慰蔚蟺喂魏蔚蠁伪位委未蔚蟼 (mail headers) 蟽蟿喂蟼慰蟺慰委蔚蟼伪谓伪纬蟻维蠁蔚蟿伪喂畏苇魏未慰蟽畏蟿慰蠀位慰纬喂蟽渭喂魏慰蠉 ClamAV, 蟿慰蠈谓慰渭伪蟿慰蠀蔚尉蠀蟺畏蟻蔚蟿畏蟿萎 (*.noc.ntua.gr) 蟺慰蠀未喂伪蠂蔚喂蟻委蟽蟿畏魏蔚蟿慰渭萎谓蠀渭伪魏伪喂畏魏伪蟿维蟽蟿伪蟽萎蟿慰蠀 (Clean) 蟺蟻慰蟼蟺位畏蟻慰蠁蠈蟻畏蟽畏蟿慰蠀伪蟺慰未苇魏蟿畏. 螤伪蟻维未蔚喂纬渭伪:</p> <blockquote><code>X-Virus-Scanned: ClamAV version 0.88.1, clamav-milter version 0.88.1 on achilles.noc.ntua.gr<br /> X-Virus-Status: Clean</code></blockquote> <p><strong>危蟿伪蟿喂蟽蟿喂魏维</strong></p> <p><a href="http://graph.noc.ntua.gr/a/graph_553.html"><img alt="mailstats - messages from servers" src="http://graph.noc.ntua.gr/a/graphs/thumb_553.png" /></a></p> <p><a href="http://graph.noc.ntua.gr/a/graph_554.html"><img alt="mailstats - messages to servers" src="http://graph.noc.ntua.gr/a/graphs/thumb_554.png" /></a></p> <p><a href="http://graph.noc.ntua.gr/a/graph_557.html"><img alt="mailstats - Kbytes from servers" src="http://graph.noc.ntua.gr/a/graphs/thumb_557.png" /></a></p> <p><a href="http://graph.noc.ntua.gr/a/graph_558.html"><img alt="mailstats - Kbytes to servers" src="http://graph.noc.ntua.gr/a/graphs/thumb_558.png" /></a></p> <p><a href="http://graph.noc.ntua.gr/a/graph_1806.html"><img alt="rejected mail from dnsbl lists" src="http://graph.noc.ntua.gr/a/graphs/thumb_1806.png" /></a></p> <p><a href="http://graph.noc.ntua.gr/a/graph_555.html"><img alt="mailstats- rejected from servers" src="http://graph.noc.ntua.gr/a/graphs/thumb_555.png" /></a></p> <p><strong>螤位畏蟻慰蠁慰蟻委蔚蟼</strong></p> <p>螕喂伪蟺蔚蟻喂蟽蟽蠈蟿蔚蟻蔚蟼蟺位畏蟻慰蠁慰蟻委蔚蟼渭蟺慰蟻蔚委蟿蔚谓伪蔚蟺喂魏慰喂谓蠅谓萎蟽蔚蟿蔚渭蔚蟿畏谓违蟺畏蟻蔚蟽委伪违蟺慰蟽蟿萎蟻喂尉畏蟼围蟻畏蟽蟿蠋谓 (<a href="/helpdesk">Help-Desk</a>) 蟿慰蠀螝螘螖.</p></div> </div> </article> </div> <div class="row spacer"> </div> </section> <aside class="hidden-xs col-md-2" role="complementary"> </aside> </div> <div class="row spacer"> </div> </div> <div class="nocwell" style="margin:0;"> <footer class="container-fluid" role="contentinfo"> <div class="region region-footer"> <section class="views-element-container block block-views block-views-blockfooter-services2-block-1 clearfix" id="block-views-block-footer-services2-block-1"> <div class="form-group"><div class="view view-footer-services2 view-id-footer_services2 view-display-id-block_1 view-dom-id-7aece257c5c9b5372944784a4a2dc1f13af366882c16d73c48d4c9e75ddec673"> <div class="view-content"> <div class="col-xs-12 col-sm-6 col-lg-3"> <h3>螕蔚谓喂魏苇蟼蠀蟺畏蟻蔚蟽委蔚蟼</h3> <ul class="list-unstyled margintopbottom5"> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/directory" hreflang="el">违蟺畏蟻蔚蟽委伪魏伪蟿伪位蠈纬慰蠀</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/map.ntua.gr" hreflang="el">螚位蔚魏蟿蟻慰谓喂魏蠈蟼蠂维蟻蟿畏蟼螤慰位蠀蟿蔚蠂谓蔚喂慰蠉蟺慰位畏蟼螙蠅纬蟻维蠁慰蠀</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/ftp.ntua.gr" hreflang="el">螘尉蠀蟺畏蟻蔚蟿畏蟿萎蟼渭蔚蟿伪尾委尾伪蟽畏蟼伪蟻蠂蔚委蠅谓 (ftp.ntua.gr)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/www.ntua.gr" hreflang="el">螝蔚谓蟿蟻喂魏蠈蟼喂蟽蟿蠈蟿慰蟺慰蟼螘螠螤 (www.ntua.gr)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/rss" hreflang="el">RSS feeds</a></span></div></li> </ul> </div> <div class="col-xs-12 col-sm-6 col-lg-3"> <h3>违蟺畏蟻蔚蟽委蔚蟼蠂蟻畏蟽蟿蠋谓</h3> <ul class="list-unstyled margintopbottom5"> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/wi-fi" hreflang="el">危蠉谓未蔚蟽畏蟽蟿慰伪蟽蠉蟻渭伪蟿慰未委魏蟿蠀慰 (Wi-Fi)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/connect%20to%20data%20network" hreflang="el">危蠉谓未蔚蟽畏蟽蟿慰未委魏蟿蠀慰未蔚未慰渭苇谓蠅谓</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/mycourses" hreflang="el">螜蟽蟿慰蟽蔚位委未蔚蟼渭伪胃畏渭维蟿蠅谓 (mycourses.ntua.gr)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/vpn" hreflang="el">危蠉谓未蔚蟽畏渭苇蟽蠅蔚喂魏慰谓喂魏慰蠉喂未喂蠅蟿喂魏慰蠉未喂魏蟿蠉慰蠀 (VPN) </a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/e-mail" hreflang="el">螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (e-mail)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/teleteaching" hreflang="el">螒委胃慰蠀蟽蔚蟼蟿畏位蔚魏蟺伪委未蔚蠀蟽畏蟼魏伪喂蟺慰位蠀渭苇蟽蠅谓</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/my" hreflang="el">螤蟻慰蟽蠅蟺喂魏萎伪蟿味苇谓蟿伪 (my.ntua.gr)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/lists.ntua.gr" hreflang="el">螞委蟽蟿蔚蟼畏位蔚魏蟿蟻慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (lists.ntua.gr)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/users.ntua.gr" hreflang="el">螤蟻慰蟽蠅蟺喂魏苇蟼喂蟽蟿慰蟽蔚位委未蔚蟼 (users.ntua.gr)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/login.ntua.gr" hreflang="el">违蟺畏蟻蔚蟽委伪蟿伪蠀蟿慰蟺慰委畏蟽畏蟼蠂蟻畏蟽蟿蠋谓</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/e-signature" hreflang="el">螚位蔚魏蟿蟻慰谓喂魏萎蠀蟺慰纬蟻伪蠁萎</a></span></div></li> </ul> </div> <div class="col-xs-12 col-sm-6 col-lg-3"> <h3>违蟺畏蟻蔚蟽委蔚蟼未喂魏蟿蠉慰蠀蠁蠅谓萎蟼</h3> <ul class="list-unstyled margintopbottom5"> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/voice%20connect" hreflang="el">危蠉谓未蔚蟽畏蟽蟿慰蟿畏位蔚蠁蠅谓喂魏蠈未委魏蟿蠀慰蟿慰蠀螘螠螤</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/voice%20mail" hreflang="el">螛蠀蟻委未蔚蟼蠁蠅谓畏蟿喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (voice mail)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/voice%20charges" hreflang="el">韦畏位蔚蠁蠅谓喂魏苇蟼蠂蟻蔚蠋蟽蔚喂蟼</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/directory%20info" hreflang="el">螤位畏蟻慰蠁慰蟻委蔚蟼魏伪蟿伪位蠈纬慰蠀</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/call%20universities" hreflang="el">韦畏位蔚蠁蠅谓喂魏萎魏位萎蟽畏蠂蠅蟻委蟼蠂蟻苇蠅蟽畏蟺蟻慰蟼维位位伪螒螘螜</a></span></div></li> </ul> </div> <div class="col-xs-12 col-sm-6 col-lg-3"> <h3>违蟺畏蟻蔚蟽委蔚蟼未喂伪蠂蔚喂蟻喂蟽蟿蠋谓</h3> <ul class="list-unstyled margintopbottom5"> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/dns" hreflang="el">违蟺畏蟻蔚蟽委伪慰谓慰渭伪蟿慰位慰纬委伪蟼 (DNS)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/virtual%20dns" hreflang="el">违蟺畏蟻蔚蟽委伪蔚喂魏慰谓喂魏萎蟼慰谓慰渭伪蟿慰位慰纬委伪蟼 (virtual DNS)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/web%20hosting" hreflang="el">桅喂位慰尉蔚谓委伪喂蟽蟿慰蟽蔚位委未蠅谓 (web hosting)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/virtual%20e-mail" hreflang="el">违蟺畏蟻蔚蟽委伪蔚喂魏慰谓喂魏慰蠉蟿伪蠂蠀未蟻慰渭蔚委慰蠀 (virtual e-mail)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/smtp" hreflang="el">螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (SMTP)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/sso" hreflang="el">违蟺畏蟻蔚蟽委伪蔚谓喂伪委伪蟼蟺蟻蠈蟽尾伪蟽畏蟼 (SSO)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/security" hreflang="el">螒蟽蠁维位蔚喂伪未喂魏蟿蠉慰蠀</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/ntp" hreflang="el">危蠀纬蠂蟻慰谓喂蟽渭慰蟼蠀蟺慰位慰纬喂蟽蟿蠋谓 (NTP) </a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/server%20hosting" hreflang="el">桅喂位慰尉蔚谓委伪蠀蟺慰位慰纬喂蟽蟿喂魏蠋谓蟽蠀蟽蟿畏渭维蟿蠅谓 (server hosting)</a></span></div></li> <li class="footerlink"><div class="views-field views-field-title"><span class="field-content"><a href="/el/service/certificates" hreflang="el">螆魏未慰蟽畏蠄畏蠁喂伪魏蠋谓蟺喂蟽蟿慰蟺慰喂畏蟿喂魏蠋谓</a></span></div></li> </ul> </div> </div> </div> </div> </section> </div> </footer> </div> </div> </div> <script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","scriptPath":null,"pathPrefix":"el\/","currentPath":"node\/12","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"el"},"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"matomo":{"disableCookies":false,"trackMailto":true},"bootstrap":{"forms_has_error_value_toggle":1,"modal_animation":1,"modal_backdrop":"true","modal_focus_input":1,"modal_keyboard":1,"modal_select_text":1,"modal_show":1,"modal_size":"","popover_enabled":1,"popover_animation":1,"popover_auto_close":1,"popover_container":"body","popover_content":"","popover_delay":"0","popover_html":0,"popover_placement":"right","popover_selector":"","popover_title":"","popover_trigger":"click","tooltip_enabled":1,"tooltip_animation":1,"tooltip_container":"body","tooltip_delay":"0","tooltip_html":0,"tooltip_placement":"auto left","tooltip_selector":"","tooltip_trigger":"hover"},"user":{"uid":0,"permissionsHash":"fa5674aeb786ab6099ddf2932861c1472323c7a294f03bf1db9f0461d6031b67"}}</script> <script src="/core/assets/vendor/jquery/jquery.min.js?v=3.5.1"></script> <script src="/core/assets/vendor/underscore/underscore-min.js?v=1.13.1"></script> <script src="/core/misc/drupalSettingsLoader.js?v=8.9.20"></script> <script src="/files/languages/el_bGlKLlvGiPFGQNYLaRohfV9-njOlw0AH-xsMFLLpy4o.js?sn752k"></script> <script src="/core/misc/drupal.js?v=8.9.20"></script> <script src="/core/misc/drupal.init.js?v=8.9.20"></script> <script src="/modules/matomo/js/matomo.js?v=8.9.20"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.4.1/dist/js/bootstrap.js" integrity="sha256-29KjXnLtx9a95INIGpEvHDiqV/qydH2bBx0xcznuA6I=" crossorigin="anonymous"></script> <script src="/themes/bootstrap/js/drupal.bootstrap.js?sn752k"></script> <script src="/themes/bootstrap/js/attributes.js?sn752k"></script> <script src="/themes/bootstrap/js/theme.js?sn752k"></script> <script src="/themes/noc/external/smartmenus-1.0.1/jquery.smartmenus.js?sn752k"></script> <script src="/themes/noc/external/smartmenus-1.0.1/addons/bootstrap/jquery.smartmenus.bootstrap.js?sn752k"></script> <script src="/themes/bootstrap/js/popover.js?sn752k"></script> <script src="/themes/bootstrap/js/tooltip.js?sn752k"></script> </body> </html>

CINXE.COM

螚位蔚魏蟿蟻慰谓喂魏蠈 蟿伪蠂蠀未蟻慰渭蔚委慰 (SMTP) | 螝苇谓蟿蟻慰 螖喂魏蟿蠉蠅谓 螘螠螤

螚位蔚魏蟿蟻慰谓喂魏蠈蟿伪蠂蠀未蟻慰渭蔚委慰 (SMTP) | 螝苇谓蟿蟻慰螖喂魏蟿蠉蠅谓螘螠螤