{"id":234575,"date":"2026-04-04T02:41:32","date_gmt":"2026-04-04T07:41:32","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/04\/microsoft-still-working-to-fix-exchange-online-mailbox-access-issues"},"modified":"2026-04-04T02:41:32","modified_gmt":"2026-04-04T07:41:32","slug":"microsoft-still-working-to-fix-exchange-online-mailbox-access-issues","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/04\/microsoft-still-working-to-fix-exchange-online-mailbox-access-issues","title":{"rendered":"Microsoft still working to fix Exchange Online mailbox access issues"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/microsoft-still-working-to-fix-exchange-online-mailbox-access-issues.jpg\"><\/a><\/p>\n<p>Microsoft is investigating and working to resolve Exchange Online mailbox access issues that have intermittently affected Outlook mobile and macOS users for weeks.<\/p>\n<p>When it <a href=\"https:\/\/www.bleepingcomputer.com\/news\/microsoft\/new-exchange-online-virtual-account-blocks-email-access-via-mobile-mac-apps\/\" target=\"_blank\" rel=\"nofollow noopener\">first acknowledged<\/a> this service issue (tracked under <a href=\"https:\/\/admin.microsoft.com\/#\/MessageCenter\/:\/messages\/EX1256020\" target=\"_blank\" rel=\"nofollow noopener\">EX1256020<\/a>) last week, Microsoft said it started on March 11 and that the root cause was a newly introduced virtual account. While the company flagged it as resolved on April 1, the incident has been re-added to the admin message center under a different tag (<a href=\"https:\/\/admin.microsoft.com\/#\/MessageCenter\/:\/messages\/EX1268771\" target=\"_blank\" rel=\"nofollow noopener\">EX1268771<\/a>).<\/p>\n<p>\u201cWe\u2019ve received reports from affected tenants that the impact scenario originally communicated through SHD EX1256020 is still ongoing. We\u2019re working to restart the Notification Broker service on affected portions of Exchange Online service infrastructure to remediate impact while we continue our analysis into the underlying root cause,\u201d Microsoft says.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft is investigating and working to resolve Exchange Online mailbox access issues that have intermittently affected Outlook mobile and macOS users for weeks. When it first acknowledged this service issue (tracked under EX1256020) last week, Microsoft said it started on March 11 and that the root cause was a newly introduced virtual account. While the [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-234575","post","type-post","status-publish","format-standard","hentry","category-futurism"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/234575","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=234575"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/234575\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=234575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=234575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=234575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}