{"id":11379,"date":"2025-05-02T06:01:00","date_gmt":"2025-05-01T21:01:00","guid":{"rendered":"https:\/\/m365jp.net\/?p=11379"},"modified":"2025-05-02T06:01:06","modified_gmt":"2025-05-01T21:01:06","slug":"servicerestored-ex1064599-exchange-online-some-users-inbound-email-messages-sent-from-gmail-accounts-may-be-incorrectly-marked-as-spam-and-quarantined","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-05-02-servicerestored-ex1064599-exchange-online-some-users-inbound-email-messages-sent-from-gmail-accounts-may-be-incorrectly-marked-as-spam-and-quarantined","title":{"rendered":"[serviceRestored] EX1064599 | Exchange Online | Some users\u2019 inbound email messages sent from Gmail accounts may be incorrectly marked as spam and quarantined"},"content":{"rendered":"
\n
\n
\n\n\n\n
EX1064599 | Exchange Online | Some users\u2019 inbound email messages sent from Gmail accounts may be incorrectly marked as spam and quarantined<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nincident<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers\u2019 inbound email messages sent from Gmail accounts may have been incorrectly marked as spam and quarantined.<\/td>\n<\/tr>\n
Last Updated<\/th>\n05\/01\/2025 20:31:42<\/td>\n<\/tr>\n
Start Time<\/th>\n04\/26\/2025 00:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n05\/01\/2025 16:00:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users\u2019 inbound email messages sent from Gmail accounts may be incorrectly marked as spam and quarantined<\/p>\n

User impact: Users\u2019 inbound email messages sent from Gmail accounts may have been incorrectly marked as spam and quarantined.<\/p>\n

More info: While we focused on remediation, users and admins may have been able to create allow rules to prevent email messages from Gmail senders from going to the junk folder.<\/p>\n

Final status: After a period of monitoring, we’ve confirmed through our service health telemetry that the completion of reverting to the previous ML model has successfully remediated impact.<\/p>\n

Scope of impact: Some users that were expecting to receive email messages sent from Gmail domains in their Exchange Online inbox may have been affected by this issue.<\/p>\n

Start time: Saturday, April 26, 2025, at 12:00 AM UTC<\/p>\n

End time: Thursday, May 1, 2025, at 4:00 PM UTC<\/p>\n

Root cause: Our ML processes, which safeguard Exchange Online against risky email messages, was incorrectly identifying legitimate email messages as spam due to their similarity to email messages used in spam attacks, which was resulting in impact.<\/p>\n

Next steps:
– We’re continuing to investigate opportunities to improve our ML detection process to reduce false positive detections and prevent similar future impact.<\/p>\n

This is the final update for the event.<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: Gmail \u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u304c\u8aa4\u3063\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5206\u985e\u3055\u308c\u3001\u691c\u75ab\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: Gmail \u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u306e\u53d7\u4fe1\u30e1\u30fc\u30eb\u304c\u8aa4\u3063\u3066\u8ff7\u60d1\u30e1\u30fc\u30eb\u306b\u5206\u985e\u3055\u308c\u3001\u691c\u75ab\u3055\u308c\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8a73\u7d30: \u4fee\u6b63\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u3066\u3044\u307e\u3059\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u7ba1\u7406\u8005\u306f\u3001Gmail \u306e\u9001\u4fe1\u8005\u304b\u3089\u306e\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8ff7\u60d1\u30e1\u30fc\u30eb \u30d5\u30a9\u30eb\u30c0\u306b\u632f\u308a\u5206\u3051\u3089\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u8a31\u53ef\u30eb\u30fc\u30eb\u3092\u4f5c\u6210\u3067\u304d\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6700\u7d42\u72b6\u614b: \u4e00\u5b9a\u671f\u9593\u306e\u76e3\u8996\u306e\u5f8c\u3001\u30b5\u30fc\u30d3\u30b9\u6b63\u5e38\u6027\u30c6\u30ec\u30e1\u30c8\u30ea\u3092\u901a\u3058\u3066\u3001\u4ee5\u524d\u306e ML \u30e2\u30c7\u30eb\u3078\u306e\u5fa9\u5e30\u304c\u5b8c\u4e86\u3057\u3001\u5f71\u97ff\u304c\u6b63\u5e38\u306b\u4fee\u5fa9\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u56f2: Gmail \u30c9\u30e1\u30a4\u30f3\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3092 Exchange Online \u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\u3067\u53d7\u4fe1\u3059\u308b\u4e88\u5b9a\u3060\u3063\u305f\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u3001\u3053\u306e\u554f\u984c\u306e\u5f71\u97ff\u3092\u53d7\u3051\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593: 2025 \u5e74 4 \u6708 26 \u65e5\u571f\u66dc\u65e5\u306e\u5348\u524d 12:00 UTC<\/p>\n

\u7d42\u4e86\u6642\u523b: 2025 \u5e74 5 \u6708 1 \u65e5\u6728\u66dc\u65e5 4:00 PM UTC<\/p>\n

\u6839\u672c\u539f\u56e0: \u30ea\u30b9\u30af\u306e\u9ad8\u3044\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u304b\u3089 Exchange Online \u3092\u4fdd\u8b77\u3059\u308b ML \u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30b9\u30d1\u30e0\u653b\u6483\u3067\u4f7f\u7528\u3055\u308c\u308b\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u985e\u4f3c\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6b63\u5f53\u306a\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8aa4\u3063\u3066\u30b9\u30d1\u30e0\u3068\u3057\u3066\u8b58\u5225\u3057\u3001\u5f71\u97ff\u3092\u3082\u305f\u3089\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
– Microsoft \u3067\u306f\u3001\u8aa4\u691c\u77e5\u306e\u691c\u51fa\u3092\u6e1b\u3089\u3057\u3001\u5c06\u6765\u540c\u69d8\u306e\u5f71\u97ff\u3092\u9632\u3050\u305f\u3081\u306b\u3001ML \u691c\u51fa\u30d7\u30ed\u30bb\u30b9\u3092\u6539\u5584\u3059\u308b\u6a5f\u4f1a\u3092\u5f15\u304d\u7d9a\u304d\u8abf\u67fb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u306f\u30a4\u30d9\u30f3\u30c8\u306e\u6700\u7d42\u66f4\u65b0\u3067\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

EX1064599 | Exchange Online | Some users\u2019 inbound email messages sent from Gmail accounts may be incorrectly m […]<\/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-11379","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/11379","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=11379"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/11379\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=11379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=11379"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=11379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}