{"id":3318,"date":"2023-09-22T10:00:30","date_gmt":"2023-09-22T01:00:30","guid":{"rendered":"https:\/\/m365jp.xyz\/?p=3318"},"modified":"2023-09-22T10:03:17","modified_gmt":"2023-09-22T01:03:17","slug":"servicerestored-ex676266-exchange-online-some-users-were-receiving-large-amounts-of-spam-messages-from-specific-senders-in-exchange-online","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2023-09-22-servicerestored-ex676266-exchange-online-some-users-were-receiving-large-amounts-of-spam-messages-from-specific-senders-in-exchange-online","title":{"rendered":"[serviceRestored] EX676266 | Exchange Online | Some users were receiving large amounts of spam messages from specific senders in Exchange Online"},"content":{"rendered":"
\n
\n
\n\n\n\n
EX676266 | Exchange Online | Some users were receiving large amounts of spam messages from specific senders in Exchange Online<\/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 were receiving large amounts of spam messages from specific senders in Exchange Online.<\/td>\n<\/tr>\n
Last Updated<\/th>\n09\/22\/2023 00:17:12<\/td>\n<\/tr>\n
Start Time<\/th>\n09\/19\/2023 23:26:00<\/td>\n<\/tr>\n
End Time<\/th>\n09\/21\/2023 21:53:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users were receiving large amounts of spam messages from specific senders in Exchange Online<\/p>\n

User impact: Users were receiving large amounts of spam messages from specific senders in Exchange Online.<\/p>\n

More info: This issue only affected a very specific group of organizations, and your tenancy may not have been affected. Mail may have originated from non-legitimate Microsoft domains.<\/p>\n

Final status: We\u2019ve confirmed via an extended period of monitoring that the issue has been resolved after the implementation of our fix. <\/p>\n

Scope of impact: Some of your users may have received large amounts of spam messages from potentially fraudulent senders in Exchange Online. <\/p>\n

Start Time: Tuesday, September 19, 2023, at 11:26 PM UTC<\/p>\n

Preliminary root cause: Our automated Anti-Spam throttling and blocking services were not properly being triggered due to various reasons in logic. A long-term focus remains on this issue as a whole to better understand the cause and methods to address the sources of impact. <\/p>\n

End Time: Thursday, September 21, 2023, at 9:53 PM UTC <\/p>\n

Next steps:
-We\u2019re reviewing our mitigation steps to reduce resolution time for similar events in the future.
-We\u2019re analyzing our automated services to better improve their efficacy. <\/p>\n

A post-incident report will published within five business days.<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb: \u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001Exchange Online \u3067\u7279\u5b9a\u306e\u9001\u4fe1\u8005\u304b\u3089\u5927\u91cf\u306e\u30b9\u30d1\u30e0 \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u3066\u3044\u307e\u3057\u305f<\/p>\n

\u30e6\u30fc\u30b6\u3078\u306e\u5f71\u97ff:\u30e6\u30fc\u30b6\u304c Exchange Online \u306e\u7279\u5b9a\u306e\u9001\u4fe1\u8005\u304b\u3089\u5927\u91cf\u306e\u30b9\u30d1\u30e0\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u3066\u3044\u305f\u3002<\/p>\n

\u8a73\u7d30\u60c5\u5831: \u3053\u306e\u554f\u984c\u306f\u975e\u5e38\u306b\u7279\u5b9a\u306e\u7d44\u7e54\u30b0\u30eb\u30fc\u30d7\u306b\u306e\u307f\u5f71\u97ff\u3057\u3001\u30c6\u30ca\u30f3\u30b7\u306f\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30e1\u30fc\u30eb\u304c\u6b63\u898f\u306e Microsoft \u30c9\u30e1\u30a4\u30f3\u304b\u3089\u767a\u4fe1\u3055\u308c\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6700\u7d42\u30b9\u30c6\u30fc\u30bf\u30b9: \u9577\u671f\u9593\u306e\u76e3\u8996\u3092\u901a\u3058\u3066\u3001\u4fee\u6b63\u306e\u5b9f\u88c5\u5f8c\u306b\u554f\u984c\u304c\u89e3\u6c7a\u3055\u308c\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u5f71\u97ff\u306e\u7bc4\u56f2: \u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001Exchange Online \u3067\u8a50\u6b3a\u306e\u53ef\u80fd\u6027\u306e\u3042\u308b\u9001\u4fe1\u8005\u304b\u3089\u5927\u91cf\u306e\u30b9\u30d1\u30e0 \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593:2023\u5e749\u670819\u65e5\u706b\u66dc\u65e5\u5348\u5f8c11\u664226\u5206UTC<\/p>\n

\u66ab\u5b9a\u7684\u306a\u6839\u672c\u539f\u56e0: \u30ed\u30b8\u30c3\u30af\u306e\u3055\u307e\u3056\u307e\u306a\u7406\u7531\u306b\u3088\u308a\u3001\u81ea\u52d5\u5316\u3055\u308c\u305f\u30b9\u30d1\u30e0\u5bfe\u7b56\u306e\u8abf\u6574\u304a\u3088\u3073\u30d6\u30ed\u30c3\u30af\u30b5\u30fc\u30d3\u30b9\u304c\u9069\u5207\u306b\u30c8\u30ea\u30ac\u30fc\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5f71\u97ff\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u65b9\u6cd5\u3092\u3088\u308a\u3088\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u306e\u554f\u984c\u5168\u4f53\u306b\u9577\u671f\u7684\u306a\u7126\u70b9\u304c\u5f53\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u7d42\u4e86\u6642\u9593: 2023 \u5e74 9 \u6708 21 \u65e5\u6728\u66dc\u65e5\u5348\u5f8c 9 \u6642 53 \u5206 (UTC)<\/p>\n

\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
-\u4eca\u5f8c\u3001\u540c\u69d8\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u89e3\u6c7a\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b\u305f\u3081\u306b\u3001\u8efd\u6e1b\u624b\u9806\u3092\u898b\u76f4\u3057\u3066\u3044\u307e\u3059\u3002
-\u81ea\u52d5\u5316\u30b5\u30fc\u30d3\u30b9\u306e\u6709\u52b9\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u5206\u6790\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5f8c\u306e\u30ec\u30dd\u30fc\u30c8\u306f 5 \u55b6\u696d\u65e5\u4ee5\u5185\u306b\u767a\u884c\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

EX676266 | Exchange Online | Some users were receiving large amounts of spam messages from specific senders in […]<\/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-3318","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/3318","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=3318"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/3318\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=3318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=3318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=3318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}