{"id":509,"date":"2015-07-14T16:18:00","date_gmt":"2015-07-14T16:18:00","guid":{"rendered":"https:\/\/kinglou.itgroove.net\/?p=509"},"modified":"2023-02-24T21:39:42","modified_gmt":"2023-02-24T21:39:42","slug":"ndr-554-5-4-4-smtpsend-dns-mxloopback-dns-records-for-this-domain-are-configured-in-a-loop","status":"publish","type":"post","link":"https:\/\/regroove.ca\/archive\/2015\/07\/14\/ndr-554-5-4-4-smtpsend-dns-mxloopback-dns-records-for-this-domain-are-configured-in-a-loop\/","title":{"rendered":"NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback; DNS records for this domain are configured in a loop"},"content":{"rendered":"<h4 align=\"left\">NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback<\/h4>\n<p align=\"left\">A little bit of history on why I was receiving this DNS loop error NDR email (NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback). We have a Hybrid solution with Exchange 2013, DirSync and Office 365. I created a new Office365 user from my on premise Exchange server and Dirsynced the account to the cloud and gave it a license. We then have an internal SharePoint workflow than emails the account when a specific criteria was met, this is what would trigger the loopback NDR email.<\/p>\n<p align=\"left\">The fix was as follows for me. I logged into my local Exchange Admin Console and edited the account in question and went to the email address field. When the account got created it had populated the <strong>\u201cSet as remote routing address\u201d<\/strong> field to the users default SMTP address. Changing this to the <strong>mail.onmicrosoft.com<\/strong> account then let the internal email route\/relay to outside without giving me the loopback NDR bounce back.<\/p>\n<p align=\"left\"><a href=\"https:\/\/regroove.ca\/archive\/wp-content\/uploads\/sites\/6\/2015\/07\/image3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" style=\"padding-top: 0px;padding-left: 0px;padding-right: 0px;border: 0px\" title=\"image\" src=\"http:\/\/kinglou.itgroove.net\/wp-content\/uploads\/sites\/11\/2015\/07\/image_thumb3.png\" alt=\"NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback\" width=\"678\" height=\"358\" border=\"0\" \/><\/a><\/p>\n<p align=\"left\">I also have under my accepted domains <strong>mail.onmicrosoft.com<\/strong> set and an <strong>Internal relay<\/strong> as the domain type.<\/p>\n<p align=\"left\"><a href=\"https:\/\/regroove.ca\/archive\/wp-content\/uploads\/sites\/6\/2015\/07\/image4.png\"><img loading=\"lazy\" decoding=\"async\" style=\"padding-top: 0px;padding-left: 0px;padding-right: 0px;border: 0px\" title=\"image\" src=\"http:\/\/kinglou.itgroove.net\/wp-content\/uploads\/sites\/11\/2015\/07\/image_thumb4.png\" alt=\"image\" width=\"680\" height=\"342\" border=\"0\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback A little bit of history on why I was receiving this DNS loop error NDR email (NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback). We have a Hybrid solution with Exchange 2013, DirSync and Office 365. I created a new Office365 user from my on premise Exchange server and Dirsynced the account to the cloud &hellip; <a href=\"https:\/\/regroove.ca\/archive\/2015\/07\/14\/ndr-554-5-4-4-smtpsend-dns-mxloopback-dns-records-for-this-domain-are-configured-in-a-loop\/\"><\/a><\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[231,247],"tags":[88,386,718,475,482,484,16,768],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback; DNS records for this domain are configured in a loop - Archive<\/title>\n<meta name=\"description\" content=\"NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/regroove.ca\/archive\/2015\/07\/14\/ndr-554-5-4-4-smtpsend-dns-mxloopback-dns-records-for-this-domain-are-configured-in-a-loop\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback; DNS records for this domain are configured in a loop - Archive\" \/>\n<meta property=\"og:description\" content=\"NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback\" \/>\n<meta property=\"og:url\" content=\"https:\/\/regroove.ca\/archive\/2015\/07\/14\/ndr-554-5-4-4-smtpsend-dns-mxloopback-dns-records-for-this-domain-are-configured-in-a-loop\/\" \/>\n<meta property=\"og:site_name\" content=\"Archive\" \/>\n<meta property=\"article:published_time\" content=\"2015-07-14T16:18:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-24T21:39:42+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/kinglou.itgroove.net\/wp-content\/uploads\/sites\/11\/2015\/07\/image_thumb3.png\" \/>\n<meta name=\"author\" content=\"Sean Wallbridge\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sean Wallbridge\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/regroove.ca\/archive\/2015\/07\/14\/ndr-554-5-4-4-smtpsend-dns-mxloopback-dns-records-for-this-domain-are-configured-in-a-loop\/\",\"url\":\"https:\/\/regroove.ca\/archive\/2015\/07\/14\/ndr-554-5-4-4-smtpsend-dns-mxloopback-dns-records-for-this-domain-are-configured-in-a-loop\/\",\"name\":\"NDR 554 5.4.4 SMTPSEND.DNS.MxLoopback; 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