{"id":13354,"date":"2025-10-17T07:01:37","date_gmt":"2025-10-16T22:01:37","guid":{"rendered":"https:\/\/m365jp.net\/?p=13354"},"modified":"2025-10-17T07:07:19","modified_gmt":"2025-10-16T22:07:19","slug":"servicedegradation-ex1102371-exchange-online-users-may-be-unable-to-access-some-exchange-online-archive-mailboxes-5","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-10-17-servicedegradation-ex1102371-exchange-online-users-may-be-unable-to-access-some-exchange-online-archive-mailboxes-5","title":{"rendered":"[serviceDegradation] EX1102371 | Exchange Online | Users may be unable to access some Exchange Online archive mailboxes"},"content":{"rendered":"
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EX1102371 | Exchange Online | Users may be unable to access some Exchange Online archive mailboxes<\/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 may be unable to access some Exchange Online archive mailboxes.<\/td>\n<\/tr>\n
Last Updated<\/th>\n10\/16\/2025 21:13:34<\/td>\n<\/tr>\n
Start Time<\/th>\n06\/24\/2025 12:30:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may be unable to access some Exchange Online archive mailboxes<\/p>\n

User impact: Users may be unable to access some Exchange Online archive mailboxes.<\/p>\n

More info: This issue occurs when routine mailbox database maintenance for archive mailboxes relocates the archive to a different portion of Active Directory infrastructure from the primary mailbox. Impact may persist both during the maintenance move and after the move. The problem impacts archive mailbox access through any Exchange Online connection method.<\/p>\n

Current status: We’ve completed the deployment of the fix and we’re enabling it within a portion of the affected environment to validate that it resolves the impact. We’ll aim to provide a timeline for the fix to be enabled for all affected users by our next scheduled communications update.<\/p>\n

Scope of impact: Any user attempting to access their Exchange Online archive mailbox may encounter this issue if their primary and archive mailboxes aren’t located on the same portion of Active Directory infrastructure.<\/p>\n

Start time: Monday, June 23, 2025, at 1:00 PM UTC<\/p>\n

Root cause: As part of routine mailbox database maintenance, the affected archive mailboxes were migrated to a separate portion of database service infrastructure from the primary, preventing users from accessing the archive mailbox and causing impact.<\/p>\n

Next update by: Friday, October 24, 2025, at 12:00 AM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: \u30e6\u30fc\u30b6\u30fc\u304c\u4e00\u90e8\u306e Exchange Online \u30a2\u30fc\u30ab\u30a4\u30d6 \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u30fc\u306f\u3001\u4e00\u90e8\u306e Exchange Online \u30a2\u30fc\u30ab\u30a4\u30d6 \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: \u3053\u306e\u554f\u984c\u306f\u3001\u30a2\u30fc\u30ab\u30a4\u30d6 \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306e\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9 \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u5b9a\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306b\u3088\u3063\u3066\u3001\u30a2\u30fc\u30ab\u30a4\u30d6\u304c\u30d7\u30e9\u30a4\u30de\u30ea \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3068\u306f\u5225\u306e Active Directory \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u5225\u306e\u90e8\u5206\u306b\u518d\u914d\u7f6e\u3055\u308c\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u79fb\u52d5\u4e2d\u3068\u79fb\u52d5\u5f8c\u306e\u4e21\u65b9\u3067\u5f71\u97ff\u304c\u6301\u7d9a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u306f\u3001\u4efb\u610f\u306e Exchange Online \u63a5\u7d9a\u65b9\u6cd5\u3092\u4ecb\u3057\u305f\u30a2\u30fc\u30ab\u30a4\u30d6 \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9 \u30a2\u30af\u30bb\u30b9\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n

\u73fe\u5728\u306e\u72b6\u614b: \u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30c7\u30d7\u30ed\u30a4\u304c\u5b8c\u4e86\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u74b0\u5883\u306e\u4e00\u90e8\u5185\u3067\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u5f71\u97ff\u304c\u89e3\u6c7a\u3055\u308c\u308b\u3053\u3068\u3092\u691c\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002\u6b21\u56de\u306e\u4e88\u5b9a\u3055\u308c\u305f\u901a\u4fe1\u66f4\u65b0\u307e\u3067\u306b\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u5bfe\u3057\u3066\u4fee\u6b63\u3092\u6709\u52b9\u306b\u3059\u308b\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u306e\u7bc4\u56f2: Exchange Online \u30a2\u30fc\u30ab\u30a4\u30d6 \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u3068\u30a2\u30fc\u30ab\u30a4\u30d6 \u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u304c Active Directory \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u540c\u3058\u90e8\u5206\u306b\u914d\u7f6e\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u3053\u306e\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 2025 \u5e74 6 \u6708 23 \u65e5\u6708\u66dc\u65e5\u5348\u5f8c 1:00 UTC<\/p>\n

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\u6b21\u56de\u66f4\u65b0: 2025 \u5e74 10 \u6708 24 \u65e5\u91d1\u66dc\u65e5\u5348\u524d 12:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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