{"id":18578,"date":"2026-09-17T06:01:31","date_gmt":"2026-09-16T21:01:31","guid":{"rendered":"https:\/\/m365jp.net\/?p=18578"},"modified":"2026-09-17T06:08:27","modified_gmt":"2026-09-16T21:08:27","slug":"servicedegradation-ex1473059-exchange-online-users-are-unable-to-access-outlook-on-the-web-from-a-specific-outlook-link-2","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-09-17-servicedegradation-ex1473059-exchange-online-users-are-unable-to-access-outlook-on-the-web-from-a-specific-outlook-link-2","title":{"rendered":"[serviceDegradation] EX1473059 | Exchange Online | Users are unable to access Outlook on the web from a specific Outlook link"},"content":{"rendered":"
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EX1473059 | Exchange Online | Users are unable to access Outlook on the web from a specific Outlook link <\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers are unable to access Outlook on the web from a specific Outlook link. <\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/16\/2026 20:25:27<\/td>\n<\/tr>\n
Start Time<\/th>\n09\/15\/2026 15:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users are unable to access Outlook on the web from a specific Outlook link <\/p>\n

User impact: Users are unable to access Outlook on the web from a specific Outlook link. <\/p>\n

More info: Users are unable to access Outlook on the web from a specific link within Outlook.<\/p>\n

Users can access Outlook on the web by navigating to a direct URL with \/mail\/ appended.
As an example, some users can navigate to “https:\/\/outlook.office365.com\/mail\/” to
successfully access the client.
Department of Defense customers: webmail.apps.mil\/mail\/<\/a><\/p>\n

GCCH customers: outlook.office365.us\/mail\/<\/a> <\/p>\n

Current status: We’ve determined that a recent code change is preventing users from accessing Outlook on the web from a specific link within Outlook. We’ve conducted our change reversion process to address the code issue and to remediate the impact. We’re monitoring the environment to ensure no other impact persists and that the issue is resolved. <\/p>\n

Scope of impact: This issue may prevent any user attempting to access Outlook on the web from the specific link in the More Info portion of this communication. This information may be updated as our investigation continues. <\/p>\n

Start time: Tuesday, September 15, 2026, at 3:00 PM UTC <\/p>\n

Root cause: A recent code change is producing a code regression that is preventing users from accessing Outlook on the web from a specific link within Outlook. <\/p>\n

Next update by: Thursday, September 17, 2026, at 9:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u30e6\u30fc\u30b6\u30fc\u306f\u7279\u5b9a\u306eOutlook\u30ea\u30f3\u30af\u304b\u3089\u30a6\u30a7\u30d6\u4e0a\u306eOutlook\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093 <\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:\u30e6\u30fc\u30b6\u30fc\u306f\u7279\u5b9a\u306eOutlook\u30ea\u30f3\u30af\u304b\u3089\u30a6\u30a7\u30d6\u4e0a\u306eOutlook\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002 <\/p>\n

\u8a73\u7d30\u60c5\u5831:\u30e6\u30fc\u30b6\u30fc\u306fOutlook\u5185\u306e\u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304b\u3089Web\u4e0a\u306eOutlook\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u306f \/mail\/ \u3092\u4ed8\u3051\u52a0\u3048\u305f\u76f4\u63a5URL\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u3067\u3001\u30a6\u30a7\u30d6\u4e0a\u306eOutlook\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002
\u4f8b\u3048\u3070\u3001\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u300chttps:\/\/outlook.office365.com\/mail\/\u300d\u3078\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u3067\u304d\u307e\u3059\u3002
\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u6b63\u5e38\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002
\u56fd\u9632\u7dcf\u7701\u306e\u9867\u5ba2\u306e\u7686\u69d8:https:\/\/webmail.apps.mil\/mail\/<\/p>\n

GCCH\u306e\u9867\u5ba2:https:\/\/outlook.office365.us\/mail\/ <\/p>\n

\u73fe\u72b6:\u6700\u8fd1\u306e\u30b3\u30fc\u30c9\u5909\u66f4\u306b\u3088\u308a\u3001Outlook\u5185\u306e\u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304b\u3089Web\u4e0a\u306eOutlook\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u3002\u30b3\u30fc\u30c9\u306e\u554f\u984c\u306b\u5bfe\u5fdc\u3057\u3001\u5f71\u97ff\u3092\u4fee\u5fa9\u3059\u308b\u305f\u3081\u306b\u5909\u66f4\u30ea\u30d0\u30fc\u30c8\u30d7\u30ed\u30bb\u30b9\u3092\u5b9f\u65bd\u3057\u307e\u3057\u305f\u3002\u4ed6\u306e\u5f71\u97ff\u304c\u6301\u7d9a\u305b\u305a\u3001\u554f\u984c\u304c\u89e3\u6c7a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u74b0\u5883\u3092\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002 <\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u3053\u306e\u554f\u984c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u672c\u901a\u4fe1\u306e\u8a73\u7d30\u60c5\u5831\u6b04\u306e\u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304b\u3089Outlook\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u306e\u3092\u59a8\u3052\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u8abf\u67fb\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u3053\u306e\u60c5\u5831\u306f\u66f4\u65b0\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u958b\u59cb\u6642\u9593:2026\u5e749\u670815\u65e5\u706b\u66dc\u65e5 15:00 UTC <\/p>\n

\u6839\u672c\u539f\u56e0:\u6700\u8fd1\u306e\u30b3\u30fc\u30c9\u5909\u66f4\u306b\u3088\u308a\u30b3\u30fc\u30c9\u56de\u5e30\u304c\u767a\u751f\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304cOutlook\u5185\u306e\u7279\u5b9a\u306e\u30ea\u30f3\u30af\u304b\u3089\u30a6\u30a7\u30d6\u4e0a\u306eOutlook\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002 <\/p>\n

\u6b21\u56de\u66f4\u65b0:2026\u5e749\u670817\u65e5\u6728\u66dc\u65e5 21:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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