{"id":12631,"date":"2025-08-30T04:01:02","date_gmt":"2025-08-29T19:01:02","guid":{"rendered":"https:\/\/m365jp.net\/?p=12631"},"modified":"2025-08-30T04:04:03","modified_gmt":"2025-08-29T19:04:03","slug":"servicedegradation-ex1144490-exchange-online-users-may-be-unable-to-access-sender-office-com","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-08-30-servicedegradation-ex1144490-exchange-online-users-may-be-unable-to-access-sender-office-com","title":{"rendered":"[serviceDegradation] EX1144490 | Exchange Online | Users may be unable to access sender.office.com"},"content":{"rendered":"
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EX1144490 | Exchange Online | Users may be unable to access sender.office.com<\/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 sender.office.com.<\/td>\n<\/tr>\n
Last Updated<\/th>\n08\/29\/2025 18:48:09<\/td>\n<\/tr>\n
Start Time<\/th>\n08\/29\/2025 17:44:22<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may be unable to access sender.office.com<\/p>\n

User impact: Users may be unable to access sender.office.com.<\/p>\n

More info: As a result of being unable to access sender.office.com, users may be unable to delist IP addresses from our anti-spam lists.<\/p>\n

Current status: We’re continuing to reconfigure the authentication component to remediate the impact. We’ll aim to provide a timeline for this process to complete by our next scheduled communications update.<\/p>\n

Scope of impact: Any user attempting to access sender.office.com may be impacted.<\/p>\n

Start time: Wednesday, August 27, 2025, at 11:59 PM UTC<\/p>\n

Root cause: An authentication component within a portion of service infrastructure is misconfigured and causing the impact.<\/p>\n

Next update by: Friday, August 29, 2025, at 9:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: \u30e6\u30fc\u30b6\u30fc\u304c\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059 sender.office.com<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u30fc\u304c sender.office.com \u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8a73\u7d30: sender.office.com \u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u30b9\u30d1\u30e0\u5bfe\u7b56\u30ea\u30b9\u30c8\u304b\u3089 IP \u30a2\u30c9\u30ec\u30b9\u3092\u30ea\u30b9\u30c8\u304b\u3089\u524a\u9664\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u73fe\u5728\u306e\u30b9\u30c6\u30fc\u30bf\u30b9: \u5f71\u97ff\u3092\u4fee\u5fa9\u3059\u308b\u305f\u3081\u306b\u3001\u8a8d\u8a3c\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u518d\u69cb\u6210\u3092\u5f15\u304d\u7d9a\u304d\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u6b21\u56de\u306e\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u901a\u4fe1\u66f4\u65b0\u307e\u3067\u306b\u3001\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u306e\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: sender.office.com \u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u523b: 2025 \u5e74 8 \u6708 27 \u65e5\u6c34\u66dc\u65e5\u5348\u5f8c 11 \u6642 59 \u5206 UTC<\/p>\n

\u6839\u672c\u539f\u56e0: \u30b5\u30fc\u30d3\u30b9 \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u4e00\u90e8\u5185\u306e\u8a8d\u8a3c\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u6b63\u3057\u304f\u69cb\u6210\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u5f71\u97ff\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0: 2025 \u5e74 8 \u6708 29 \u65e5\u91d1\u66dc\u65e5\u3001\u5348\u5f8c 9:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

EX1144490 | Exchange Online | Users may be unable to access sender.office.com Status serviceDegradation Classi […]<\/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-12631","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12631","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=12631"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12631\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}