{"id":12635,"date":"2025-08-30T06:00:49","date_gmt":"2025-08-29T21:00:49","guid":{"rendered":"https:\/\/m365jp.net\/?p=12635"},"modified":"2025-08-30T06:02:27","modified_gmt":"2025-08-29T21:02:27","slug":"servicedegradation-ex1144490-exchange-online-users-may-be-unable-to-access-sender-office-com-2","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-2","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 20:53:09<\/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: Our attempts to reconfigure the impacting authentication component have been unsuccessful at this time. We’re reviewing error logs to understand why our attempts to reconfigure it have failed to remediate the impact, so we can determine what actions can be implemented to restore the authentication component, as well as the service, to expected functionality.<\/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: Saturday, August 30, 2025, at 1:00 AM 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: \u73fe\u6642\u70b9\u3067\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u8a8d\u8a3c\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u518d\u69cb\u6210\u3057\u3088\u3046\u3068\u3057\u307e\u3057\u305f\u304c\u3001\u5931\u6557\u3057\u307e\u3057\u305f\u3002\u30a8\u30e9\u30fc \u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u3066\u3001\u518d\u69cb\u6210\u306e\u8a66\u307f\u3067\u5f71\u97ff\u3092\u4fee\u5fa9\u3067\u304d\u306a\u304b\u3063\u305f\u7406\u7531\u3092\u7406\u89e3\u3057\u3001\u8a8d\u8a3c\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u671f\u5f85\u3055\u308c\u308b\u6a5f\u80fd\u306b\u5fa9\u5143\u3059\u308b\u305f\u3081\u306b\u5b9f\u88c5\u3067\u304d\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u6c7a\u5b9a\u3067\u304d\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\u65e5: 2025 \u5e74 8 \u6708 30 \u65e5\u571f\u66dc\u65e5\u5348\u524d 1:00 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-12635","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12635","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=12635"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12635\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}