{"id":12185,"date":"2025-07-11T01:01:12","date_gmt":"2025-07-10T16:01:12","guid":{"rendered":"https:\/\/m365jp.net\/?p=12185"},"modified":"2025-07-11T01:05:27","modified_gmt":"2025-07-10T16:05:27","slug":"servicedegradation-ex1112414-exchange-online-users-may-be-unable-to-access-their-mailbox-using-any-connection-methods-7","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-07-11-servicedegradation-ex1112414-exchange-online-users-may-be-unable-to-access-their-mailbox-using-any-connection-methods-7","title":{"rendered":"[serviceDegradation] EX1112414 | Exchange Online | Users may be unable to access their mailbox using any connection methods"},"content":{"rendered":"
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EX1112414 | Exchange Online | Users may be unable to access their mailbox using any connection methods<\/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>\nincident<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may be unable to access their mailbox using any connection methods.<\/td>\n<\/tr>\n
Last Updated<\/th>\n07\/10\/2025 15:27:54<\/td>\n<\/tr>\n
Start Time<\/th>\n07\/09\/2025 22:20:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may be unable to access their mailbox using any connection methods<\/p>\n

User impact: Users may be unable to access their mailbox using any connection methods.<\/p>\n

More info: Impacted connection methods include, but may not be limited to:
– Representational State Transfer (REST) API
– Outlook on the web
– Exchange ActiveSync (EAS)
– Messaging API (MAPI)<\/p>\n

Current status: We’re continuing to apply the configuration changes to fix the underlying problem and completing additional validation efforts to ensure authentication components are properly configured. In parallel to the current deployment of the configuration change fix, we’re reviewing options to leverage an expedited deployment methodology in regions which are experiencing the highest levels of impact to provide the most effective relief where possible.<\/p>\n

Scope of impact: Users attempting to access their Exchange Online mailbox using any connection methods may be impacted.<\/p>\n

Start time: Wednesday, July 9, 2025, at 10:20 PM UTC<\/p>\n

Preliminary Root Cause: A recent service update to an authentication component is unintentionally preventing access for a subset of users, resulting in intermittent service unavailability.<\/p>\n

Next update by: Thursday, July 10, 2025, at 4:30 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: \u30e6\u30fc\u30b6\u30fc\u306f\u3001\u3069\u306e\u63a5\u7d9a\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u3082\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u30fc\u306f\u3001\u3069\u306e\u63a5\u7d9a\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u3082\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8a73\u7d30\u60c5\u5831: \u5f71\u97ff\u3092\u53d7\u3051\u308b\u63a5\u7d9a\u65b9\u6cd5\u306b\u306f\u3001\u6b21\u306e\u3082\u306e\u304c\u542b\u307e\u308c\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306b\u9650\u5b9a\u3055\u308c\u307e\u305b\u3093\u3002
– Representational State Transfer(REST)API
– Outlook on the web (\u82f1\u8a9e)
– Exchange ActiveSync(EAS)(\u82f1\u8a9e)
– \u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0 API (MAPI)<\/p>\n

\u73fe\u5728\u306e\u30b9\u30c6\u30fc\u30bf\u30b9: \u6839\u672c\u7684\u306a\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u69cb\u6210\u306e\u5909\u66f4\u3092\u5f15\u304d\u7d9a\u304d\u9069\u7528\u3057\u3001\u8a8d\u8a3c\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u9069\u5207\u306b\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u8ffd\u52a0\u306e\u691c\u8a3c\u4f5c\u696d\u3092\u5b8c\u4e86\u3057\u3066\u3044\u307e\u3059\u3002\u69cb\u6210\u5909\u66f4\u4fee\u6b63\u306e\u73fe\u5728\u306e\u30c7\u30d7\u30ed\u30a4\u3068\u4e26\u884c\u3057\u3066\u3001\u5f71\u97ff\u304c\u6700\u3082\u5927\u304d\u3044\u5730\u57df\u3067\u8fc5\u901f\u306a\u30c7\u30d7\u30ed\u30a4\u65b9\u6cd5\u3092\u6d3b\u7528\u3057\u3066\u3001\u53ef\u80fd\u306a\u9650\u308a\u6700\u3082\u52b9\u679c\u7684\u306a\u7de9\u548c\u3092\u63d0\u4f9b\u3059\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u898b\u76f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u56f2: \u4efb\u610f\u306e\u63a5\u7d9a\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u3066 Exchange Online \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u304c\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 2025 \u5e74 7 \u6708 9 \u65e5\u6c34\u66dc\u65e5\u306e\u5348\u5f8c 10 \u6642 20 \u5206 (UTC)<\/p>\n

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\u6b21\u306e\u66f4\u65b0\u8005: 2025\u5e747\u670810\u65e5(\u6728)\u5348\u5f8c4\u664230\u5206(UTC)<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

EX1112414 | Exchange Online | Users may be unable to access their mailbox using any connection methods Status […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12185","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=12185"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12185\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}