{"id":44472,"date":"2026-02-11T19:08:58","date_gmt":"2026-02-11T18:08:58","guid":{"rendered":"https:\/\/www.ikarussecurity.com\/setting-up-and-synchronizing-ikarus-mail-security-with-microsoft-365\/"},"modified":"2026-02-12T09:49:22","modified_gmt":"2026-02-12T08:49:22","slug":"setting-up-and-synchronizing-ikarus-mail-security-with-microsoft-365","status":"publish","type":"page","link":"https:\/\/www.ikarussecurity.com\/en\/managed-it-ot-security-solutions\/ikarus-mail-security\/setting-up-and-synchronizing-ikarus-mail-security-with-microsoft-365\/","title":{"rendered":"Setting up and synchronizing IKARUS mail.security with Microsoft 365"},"content":{"rendered":"<div id='av-layout-grid-1'  class='av-layout-grid-container av-mliby5z4-54cbf768ff986f0a81337c87eb905231 entry-content-wrapper main_color av-flex-cells  avia-builder-el-0  el_before_av_layout_row  avia-builder-el-first   container_wrap fullsize'  >\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mlibxbdj-16698c2965e09db2ca3cd1e46b930a58\">\n.flex_cell.av-mlibxbdj-16698c2965e09db2ca3cd1e46b930a58{\nvertical-align:middle;\nheight:200px;\nmin-height:200px;\nbackground-color:#ef5737;\n}\n.responsive #top #wrap_all .flex_cell.av-mlibxbdj-16698c2965e09db2ca3cd1e46b930a58{\npadding:0px 0px 0px 0px !important;\n}\n<\/style>\n<div class='flex_cell av-mlibxbdj-16698c2965e09db2ca3cd1e46b930a58 av-gridrow-cell av_one_half no_margin  avia-builder-el-1  el_before_av_cell_one_half  avia-builder-el-first  content-align-middle av-zero-padding avia-full-stretch'  ><div class='flex_cell_inner'><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2yxw7be-b51fab6448fcd8091d4c5bd51a27fa93\">\n.flex_cell.av-2yxw7be-b51fab6448fcd8091d4c5bd51a27fa93{\nvertical-align:top;\nheight:200px;\nmin-height:200px;\nbackground-color:#d4300f;\n}\n.responsive #top #wrap_all .flex_cell.av-2yxw7be-b51fab6448fcd8091d4c5bd51a27fa93{\npadding:60px 30px 60px 30px !important;\n}\n<\/style>\n<div class='flex_cell av-2yxw7be-b51fab6448fcd8091d4c5bd51a27fa93 av-gridrow-cell av_one_half no_margin  avia-builder-el-2  el_after_av_cell_one_half  avia-builder-el-last  content-align-top'  ><div class='flex_cell_inner'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed\">\n#top .av-special-heading.av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed{\npadding-bottom:25px;\ncolor:#ffffff;\nfont-size:34px;\n}\nbody .av-special-heading.av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n#top #wrap_all .av-special-heading.av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed .av-special-heading-tag{\nfont-size:34px;\n}\n.av-special-heading.av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed .special-heading-inner-border{\nborder-color:#ffffff;\n}\n.av-special-heading.av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed .av-subheading{\nfont-size:15px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top #wrap_all .av-special-heading.av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed .av-special-heading-tag{\nfont-size:0.8em;\n}\n}\n\n@media only screen and (max-width: 479px){ \n#top #wrap_all .av-special-heading.av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed .av-special-heading-tag{\nfont-size:0.8em;\n}\n}\n<\/style>\n<div  class='av-special-heading av-mlibxvaw-b0f99daeeebbc1746b3e2ba0f3a3b4ed av-special-heading-h1 custom-color-heading blockquote modern-quote  avia-builder-el-3  avia-builder-el-no-sibling  av-inherit-size av-linked-heading'><h1 class='av-special-heading-tag '  itemprop=\"headline\"  >Setting up and synchronizing IKARUS mail.security with Microsoft 365<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<\/div><\/div>\n<\/div>\n<div id='av-layout-grid-2'  class='av-layout-grid-container av-2pweiwa-154e843bf05bafbe54217d958d17777b entry-content-wrapper main_color av-flex-cells  avia-builder-el-4  el_after_av_layout_row  el_before_av_layout_row  grid-row-not-first  container_wrap fullsize'  >\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1w6c5ca-8b97e51382b1a1de7ef62860671c6f75\">\n.flex_cell.av-1w6c5ca-8b97e51382b1a1de7ef62860671c6f75{\nvertical-align:top;\nbackground-color:#d4300f;\n}\n.responsive #top #wrap_all .flex_cell.av-1w6c5ca-8b97e51382b1a1de7ef62860671c6f75{\npadding:9px 0px 0px 0px !important;\n}\n<\/style>\n<div class='flex_cell av-1w6c5ca-8b97e51382b1a1de7ef62860671c6f75 av-gridrow-cell av_one_half no_margin av-hide-on-mobile  avia-builder-el-5  el_before_av_cell_one_half  avia-builder-el-first  content-align-top'  ><div class='flex_cell_inner'><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1gqz096-f7f6ffefc402604085dbafc96927b212\">\n.flex_cell.av-1gqz096-f7f6ffefc402604085dbafc96927b212{\nvertical-align:top;\nbackground-color:#ef5737;\n}\n.responsive #top #wrap_all .flex_cell.av-1gqz096-f7f6ffefc402604085dbafc96927b212{\npadding:9px 0px 0px 0px !important;\n}\n<\/style>\n<div class='flex_cell av-1gqz096-f7f6ffefc402604085dbafc96927b212 av-gridrow-cell av_one_half no_margin  avia-builder-el-6  el_after_av_cell_one_half  avia-builder-el-last  content-align-top'  ><div class='flex_cell_inner'><\/div><\/div>\n<\/div>\n<div id='av-layout-grid-3'  class='av-layout-grid-container av-18kfvai-8b2b8a424b0dcafa6e71e4da603053ed entry-content-wrapper main_color av-flex-cells  avia-builder-el-7  el_after_av_layout_row  avia-builder-el-last  grid-row-not-first  container_wrap fullsize'  >\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-od2lje-9ce2d5535210ccfc23f07adbaab47326\">\n.flex_cell.av-od2lje-9ce2d5535210ccfc23f07adbaab47326{\nvertical-align:top;\n}\n.responsive #top #wrap_all .flex_cell.av-od2lje-9ce2d5535210ccfc23f07adbaab47326{\npadding:30px 30px 30px 30px !important;\n}\n<\/style>\n<div class='flex_cell av-od2lje-9ce2d5535210ccfc23f07adbaab47326 av-gridrow-cell av_one_full no_margin  avia-builder-el-8  avia-builder-el-no-sibling  content-align-top'  ><div class='flex_cell_inner'><section  class='av_textblock_section av-mlic1pd0-8b6d56ed7e70ffe1a4bd76665d83bdeb '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3>Prerequisites:<\/h3>\n<ul>\n<li>Access to the IKARUS Portal<\/li>\n<li>Microsoft 365 administrator access<\/li>\n<li>IKARUS mail.security IP address (for initial setup)<\/li>\n<\/ul>\n<h2>Run O365 Sync<\/h2>\n<p>IKARUS Portal &gt; mail.security &gt; 0365 &gt; O365 Synchronization<br \/>\nA wizard will guide you step by step through the following process:<\/p>\n<ol>\n<li>Select the Microsoft account<\/li>\n<li>Select the domain(s)<\/li>\n<li>Select mailboxes<\/li>\n<li>Add the target server<\/li>\n<li>Create routes<\/li>\n<\/ol>\n<p>For the initial setup, you must then configure the inbound connector and outbound connector in Microsoft 365 and adjust the DNS records accordingly.<\/p>\n<h2>Configure Inbound Connector<\/h2>\n<p>Exchange Admin Center &gt; E-Mail flow &gt; Connectors &gt; Add connector<\/p>\n<p>Set up an inbound connector so that Microsoft 365 accepts incoming emails from IKARUS mail.security.<\/p>\n<ol>\n<li>Connection type: From partner organization<\/li>\n<li>Choose a name and optional description<\/li>\n<li>Configure authentication via the IKARUS mail.security IP address<\/li>\n<li>Configure security restrictions<\/li>\n<li>Verify the connector<\/li>\n<\/ol>\n<h2>Configure Outbound Connector<\/h2>\n<p>Exchange Admin Center &gt; E-Mail flow &gt; Connectors &gt; Add connector<\/p>\n<ol>\n<li>Connection type: from Office 365, with partner organization<\/li>\n<li>Choose a name and optional description<\/li>\n<li>Usage of the connector: Only when a transport rule exists<\/li>\n<li>Routing: through a smart host (see Outbound &gt; Authentication &gt; Relay)<\/li>\n<li>Sicherheitseinschr\u00e4nkungen konfigurieren<\/li>\n<li>Configure security restrictions<\/li>\n<li>Verify the connector<\/li>\n<\/ol>\n<h3>Create a Transport Rule in Microsoft 365<\/h3>\n<p>Exchange Admin Center &gt; E-Mail flow &gt; Rules &gt; Add rule<br \/>\nTo activate the outbound connector, a transport rule must be created in Microsoft 365.<\/p>\n<ol>\n<li style=\"list-style-type: none\">\n<ol>\n<li>Create a new rule<\/li>\n<li>Define rule conditions\n<ol type=\"a\">\n<li>Choose a name<\/li>\n<li>Apply this rule, if the recipient is external\/internal<\/li>\n<li>Recipient location is outside the organization<\/li>\n<li>Redirect message to inbound connector<\/li>\n<\/ol>\n<\/li>\n<li>Configure rule settings<\/li>\n<li>Review and finish<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h2>Adjust DNS Records<\/h2>\n<p>To route emails via IKARUS mail.security to Microsoft 365, the DNS records of the relevant domain(s) must be updated.<\/p>\n<ol>\n<li>Set the MX record to mx.mymailwall.com<\/li>\n<li>Add mymailwall.com to the SPF record<\/li>\n<\/ol>\n<blockquote>\n<p><strong>Questions and Support:<br \/>\n<\/strong>+43 1 58995-400 | <a href=\"mailto:support@ikarus.at\">support@ikarus.at<\/a><\/p>\n<\/blockquote>\n<\/div><\/section>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":4441,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"class_list":["post-44472","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/pages\/44472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/comments?post=44472"}],"version-history":[{"count":6,"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/pages\/44472\/revisions"}],"predecessor-version":[{"id":44499,"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/pages\/44472\/revisions\/44499"}],"up":[{"embeddable":true,"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/pages\/4441"}],"wp:attachment":[{"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/media?parent=44472"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ikarussecurity.com\/en\/wp-json\/wp\/v2\/tags?post=44472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}