{"id":6091,"date":"2015-09-25T12:00:22","date_gmt":"2015-09-25T11:00:22","guid":{"rendered":"http:\/\/www.markwilson.co.uk\/blog\/?p=6091"},"modified":"2015-09-25T00:43:21","modified_gmt":"2015-09-24T23:43:21","slug":"office-365-dns-settings-in-a-hybrid-environment","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2015\/09\/office-365-dns-settings-in-a-hybrid-environment.htm","title":{"rendered":"Office 365 DNS settings in a hybrid environment"},"content":{"rendered":"<p>The Office 365 Admin Center does a great job of helping administrators determine the DNS settings that are required to use a domain with Office 365; however it&#8217;s far from perfect. One particular case when it doesn&#8217;t help much at all is <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2015\/06\/office-365-and-the-hybrid-cloud.htm\">if you have hybrid components<\/a> &#8211; for example Exchange Hybrid or <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2015\/09\/configuring-lync-hybrid-split-domain-with-lync-2013-and-skype-for-business-online.htm\">Lync\/Skype for Business Hybrid (split domain)<\/a>. In scenarios such as this, you might not want the entries that Office 365 suggests, for example:<\/p>\n<ul>\n<li>Exchange autodiscover must be defined with CNAME records in a hybrid environment &#8211; the use of SRV records is not supported.<\/li>\n<li>The CNAME record to repoint autodiscover.domainname.tld\u00a0to autodiscover.outlook.com is not required in an Exchange hybrid environment (it is only used for Exchange Online).<\/li>\n<li>If mailflow is via the on-premises infrastructure (centralised routing), the SPF records for the Office 365 servers (<code>v=spf1 include:spf.protection.outlook.com -all<\/code>) are not required. In addition, no new MX records are required.<\/li>\n<li>In a Lync\/Skype for Business hybrid (split domain) environment the _sipfederationtls._tcp. domainname.tld and _sip._tls.domainname.tld SRV records <a href=\"https:\/\/community.office365.com\/en-us\/f\/148\/t\/286027\">should point to the on-premises access proxy<\/a> and not to sipdir.online.lync.com as they would for a Skype for Business online implementation. sip, lync, lyncdiscover and lsweb entries will also remain pointing to the on-premises infrastructure.<\/li>\n<\/ul>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/images\/o365-domain-check.png?resize=405%2C196&#038;ssl=1\" alt=\"Office 365 - disable DNS record checks for a domain\" width=\"405\" height=\"196\" \/>Unfortunately, without these settings in place, Office 365 will continue to alert that there are issues with domains that may cause &#8220;possible service issues&#8221;. To prevent this, navigate to the domains section of the Office 365 Admin Center and click fix issues next to one of the domains that is reporting problems. Then, on the right-hand side of the page, click the checkbox\u00a0next to &#8220;Don&#8217;t check this domain for incorrect DNS records&#8221;. Once this is set, Office 365 should stop alerting for domain issues.<\/p>\n<p>Also, be aware that\u00a0DNS tests at the <a href=\"https:\/\/testconnectivity.microsoft.com\/\">Microsoft remote connectivity analyzer<\/a>\u00a0and also some of the <a href=\"http:\/\/go.microsoft.com\/?linkid=9836032\">Office 365 Health, Readiness and Connectivity checks<\/a>, may appear to fail in a hybrid\u00a0environment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Office 365 Admin Center does a great job of helping administrators determine the DNS settings that are required to use a domain with Office 365; however it&#8217;s far from perfect. One particular case when it doesn&#8217;t help much at all is if you have hybrid components &#8211; for example Exchange Hybrid or Lync\/Skype for &hellip; <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2015\/09\/office-365-dns-settings-in-a-hybrid-environment.htm\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Office 365 DNS settings in a hybrid environment<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[218],"tags":[217],"class_list":["post-6091","post","type-post","status-publish","format-standard","hentry","category-technology","tag-office-365"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Office 365 DNS settings in a hybrid environment - markwilson.it<\/title>\n<meta name=\"description\" content=\"Office 365 DNS settings in a hybrid environment are not as the Office 365 Admin Center suggests. This post describes how to prevent alerts from being issued\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.markwilson.co.uk\/blog\/2015\/09\/office-365-dns-settings-in-a-hybrid-environment.htm\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Office 365 DNS settings in a hybrid environment - markwilson.it\" \/>\n<meta property=\"og:description\" content=\"Office 365 DNS settings in a hybrid environment are not as the Office 365 Admin Center suggests. This post describes how to prevent alerts from being issued\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.markwilson.co.uk\/blog\/2015\/09\/office-365-dns-settings-in-a-hybrid-environment.htm\" \/>\n<meta property=\"og:site_name\" content=\"markwilson.it\" \/>\n<meta property=\"article:published_time\" content=\"2015-09-25T11:00:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.markwilson.co.uk\/blog\/images\/o365-domain-check.png\" \/>\n<meta name=\"author\" content=\"Mark Wilson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:site\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark Wilson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm\"},\"author\":{\"name\":\"Mark Wilson\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"headline\":\"Office 365 DNS settings in a hybrid environment\",\"datePublished\":\"2015-09-25T11:00:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm\"},\"wordCount\":332,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"image\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/images\\\/o365-domain-check.png\",\"keywords\":[\"Microsoft Office 365\"],\"articleSection\":[\"Technology\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm\",\"name\":\"Office 365 DNS settings in a hybrid environment - markwilson.it\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2015\\\/09\\\/office-365-dns-settings-in-a-hybrid-environment.htm#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/images\\\/o365-domain-check.png\",\"datePublished\":\"2015-09-25T11:00:22+00:00\",\"description\":\"Office 365 DNS settings in a hybrid environment are not as the Office 365 Admin Center suggests. 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Recent research from one hosting company suggests that this is changing though \u2013 with public cloud usage set\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/www.markwilson.co.uk\/blog\/topic\/technology"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/images\/o365-hybrid-cloud.gif?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2767,"url":"https:\/\/www.markwilson.co.uk\/blog\/2011\/06\/domain-management-for-office-365.htm","url_meta":{"origin":6091,"position":1},"title":"Domain management for Office 365 (Small Business)","author":"Mark Wilson","date":"Friday 17 June 2011","format":false,"excerpt":"A few weeks ago, I wrote about configuring DNS for Exchange Online in Office 365. 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I wasn't entirely comfortable with\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/www.markwilson.co.uk\/blog\/topic\/technology"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2586,"url":"https:\/\/www.markwilson.co.uk\/blog\/2011\/05\/configuring-dns-for-exchange-online-in-office-365.htm","url_meta":{"origin":6091,"position":2},"title":"Configuring DNS for Exchange Online in Office 365","author":"Mark Wilson","date":"Friday 13 May 2011","format":false,"excerpt":"Readers who follow me on Twitter (@markwilsonit) may have noticed that I was in a mild state of panic last night when I managed to destroy the DNS for markwilson.co.uk.\u00a0 They might also have seen this website disappear for a few hours until I managed to get things up and\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/www.markwilson.co.uk\/blog\/topic\/technology"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8306,"url":"https:\/\/www.markwilson.co.uk\/blog\/2021\/07\/notes-from-the-field-some-common-dependencies-for-microsoft-365-deployments.htm","url_meta":{"origin":6091,"position":3},"title":"Notes from the field: some common dependencies for Microsoft 365 deployments","author":"Mark Wilson","date":"Monday 19 July 2021","format":false,"excerpt":"My blog posts take a while to get published these days. I struggle to find the time to write them and often a few notes can remain in draft form for a long time. Some of those notes never make it. Others possibly shouldn't. This is one of those posts\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/www.markwilson.co.uk\/blog\/topic\/technology"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/Microsoft365_logo_horiz_c-gray_rgb.png?fit=1200%2C441&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/Microsoft365_logo_horiz_c-gray_rgb.png?fit=1200%2C441&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/Microsoft365_logo_horiz_c-gray_rgb.png?fit=1200%2C441&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/Microsoft365_logo_horiz_c-gray_rgb.png?fit=1200%2C441&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/Microsoft365_logo_horiz_c-gray_rgb.png?fit=1200%2C441&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":6340,"url":"https:\/\/www.markwilson.co.uk\/blog\/2016\/04\/marks-office-365-resource-centre.htm","url_meta":{"origin":6091,"position":4},"title":"Retired: Mark&#8217;s Office 365 Resource Centre","author":"Mark Wilson","date":"Monday 18 April 2016","format":false,"excerpt":"18 months ago, I created \"Mark's\u00a0Office 365 Resource Centre\" using\u00a0the public site from my Office 365 subscription. 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