{"id":12764,"date":"2025-09-07T15:01:15","date_gmt":"2025-09-07T06:01:15","guid":{"rendered":"https:\/\/m365jp.net\/?p=12764"},"modified":"2025-09-07T15:01:42","modified_gmt":"2025-09-07T06:01:42","slug":"servicedegradation-mo1148487-microsoft-365-suite-some-users-may-be-blocked-from-opening-urls-in-exchange-online-messages-and-microsoft-teams-10","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-09-07-servicedegradation-mo1148487-microsoft-365-suite-some-users-may-be-blocked-from-opening-urls-in-exchange-online-messages-and-microsoft-teams-10","title":{"rendered":"[serviceDegradation] MO1148487 | Microsoft 365 suite | Some users may be blocked from opening URLs in Exchange Online messages and Microsoft Teams"},"content":{"rendered":"
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MO1148487 | Microsoft 365 suite | Some users may be blocked from opening URLs in Exchange Online messages and Microsoft Teams<\/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 blocked from opening URLs in Exchange Online messages and Microsoft Teams.<\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/07\/2025 05:32:41<\/td>\n<\/tr>\n
Start Time<\/th>\n09\/05\/2025 13:10:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may be blocked from opening URLs in Exchange Online messages and Microsoft Teams<\/p>\n

User impact: Users may be blocked from opening URLs in Exchange Online messages and Microsoft Teams.<\/p>\n

More info: Additionally, admins may receive alerts titled “A potentially malicious URL click was detected involving one user”, however the URLs have been confirmed as safe.<\/p>\n

Some email messages may have also been incorrectly quarantined.<\/p>\n

Current status: We\u2019re continuing our analysis and recovery efforts for the affected URLs, with a focus on validating the accuracy of flagged content to ensure our remediation actions consistently distinguish between truly malicious URLs and those incorrectly flagged. To support this, we\u2019re actively refining detection logic to reduce false positives and drive complete recovery across all impacted scenarios.<\/p>\n

Scope of impact: Any user receiving email messages or messages within Microsoft Teams containing specific URLs may be affected.<\/p>\n

Start time: Friday, September 5, 2025, at 1:10 PM UTC<\/p>\n

Root cause: An anti-spam service incorrectly flagged URLs contained within other URLs as potentially malicious, resulting in impact.<\/p>\n

Next update by: Sunday, September 7, 2025, at 5:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: \u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001Exchange Online \u30e1\u30c3\u30bb\u30fc\u30b8\u3068 Microsoft Teams \u3067 URL \u3092\u958b\u304f\u3053\u3068\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u30fc\u304c Exchange Online \u30e1\u30c3\u30bb\u30fc\u30b8\u3068 Microsoft Teams \u3067 URL \u3092\u958b\u304f\u3053\u3068\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8a73\u7d30: \u3055\u3089\u306b\u3001\u7ba1\u7406\u8005\u306f\u300c1 \u4eba\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u95a2\u4e0e\u3059\u308b\u60aa\u610f\u306e\u3042\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b URL \u30af\u30ea\u30c3\u30af\u304c\u691c\u51fa\u3055\u308c\u307e\u3057\u305f\u300d\u3068\u3044\u3046\u30bf\u30a4\u30c8\u30eb\u306e\u30a2\u30e9\u30fc\u30c8\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001URL \u306f\u5b89\u5168\u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u4e00\u90e8\u306e\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3082\u8aa4\u3063\u3066\u9694\u96e2\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u73fe\u5728\u306e\u30b9\u30c6\u30fc\u30bf\u30b9: \u79c1\u305f\u3061\u306f\u3001\u5831\u544a\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u6b63\u78ba\u6027\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u306b\u91cd\u70b9\u3092\u7f6e\u304d\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b URL \u306e\u5206\u6790\u3068\u56de\u5fa9\u306e\u53d6\u308a\u7d44\u307f\u3092\u7d99\u7d9a\u3057\u3001\u4fee\u5fa9\u30a2\u30af\u30b7\u30e7\u30f3\u3067\u771f\u306b\u60aa\u610f\u306e\u3042\u308b URL \u3068\u8aa4\u3063\u3066\u30d5\u30e9\u30b0\u304c\u7acb\u3066\u3089\u308c\u305f URL \u3092\u4e00\u8cab\u3057\u3066\u533a\u5225\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306b\u3001\u8aa4\u691c\u77e5\u3092\u6e1b\u3089\u3057\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u3059\u3079\u3066\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u5b8c\u5168\u306a\u5fa9\u65e7\u3092\u4fc3\u9032\u3059\u308b\u305f\u3081\u306b\u3001\u691c\u51fa\u30ed\u30b8\u30c3\u30af\u3092\u7a4d\u6975\u7684\u306b\u6539\u826f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u306e\u7bc4\u56f2: \u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u307e\u305f\u306f\u7279\u5b9a\u306e URL \u3092\u542b\u3080 Microsoft Teams \u5185\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 2025 \u5e74 9 \u6708 5 \u65e5\u91d1\u66dc\u65e5\u5348\u5f8c 1 \u6642 10 \u5206 UTC<\/p>\n

\u6839\u672c\u539f\u56e0: \u30b9\u30d1\u30e0\u5bfe\u7b56\u30b5\u30fc\u30d3\u30b9\u304c\u3001\u4ed6\u306e URL \u306b\u542b\u307e\u308c\u308b URL \u306b\u60aa\u610f\u306e\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u8aa4\u3063\u3066\u30d5\u30e9\u30b0\u3092\u7acb\u3066\u3001\u5f71\u97ff\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u56de\u66f4\u65b0\u65e5: 2025 \u5e74 9 \u6708 7 \u65e5\u65e5\u66dc\u65e5\u3001\u5348\u5f8c 5:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

MO1148487 | Microsoft 365 suite | Some users may be blocked from opening URLs in Exchange Online messages and […]<\/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-12764","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12764","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=12764"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12764\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}