{"id":3588,"date":"2023-10-12T04:00:53","date_gmt":"2023-10-11T19:00:53","guid":{"rendered":"https:\/\/m365jp.xyz\/?p=3588"},"modified":"2023-10-12T04:01:35","modified_gmt":"2023-10-11T19:01:35","slug":"servicerestored-ex680695-exchange-online-some-users-may-encounter-delays-receiving-external-email-messages-in-exchange-online","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2023-10-12-servicerestored-ex680695-exchange-online-some-users-may-encounter-delays-receiving-external-email-messages-in-exchange-online","title":{"rendered":"[serviceRestored] EX680695 | Exchange Online | Some users may encounter delays receiving external email messages in Exchange Online"},"content":{"rendered":"
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EX680695 | Exchange Online | Some users may encounter delays receiving external email messages 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 may encounter delays receiving external email messages in Exchange Online.<\/td>\n<\/tr>\n
Last Updated<\/th>\n10\/11\/2023 18:25:53<\/td>\n<\/tr>\n
Start Time<\/th>\n10\/09\/2023 21:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n10\/11\/2023 18:24:21<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may encounter delays sending and receiving external email messages in Exchange Online<\/p>\n

User impact: Users may have encountered delays sending and receiving external email messages in Exchange Online.<\/p>\n

More info: Impact was specific to Simple Mail Transfer Protocol (SMTP). Most users would have experienced up to a 1-hour delay; however, in some cases, users may have encountered delays of up to 24 hours. Additionally, the email sender may have received a Non-Delivery Report (NDR) with a “451 4.7.500 Server busy” error message, and their attempt to retry delivery of the email may have been delivered up to 24 hours later.<\/p>\n

Final status: We\u2019ve completed our deployment of the change, which was a targeted reversion of the code issue causing impact. Users should now be experiencing mitigation, though some residual delays may still occur over the next hour as the change completes.<\/p>\n

Scope of impact: Impact was specific to some users who were served through the affected infrastructure. The issue affected users Worldwide and only for a portion of IP addresses, therefore not all users experienced impact.<\/p>\n

Start time: Monday, October 9, 2023, at 9:00 PM UTC<\/p>\n

End time: Wednesday, October 11, 2023, at 5:00 PM UTC<\/p>\n

Preliminary root cause: A recent service update that was applied to a section of infrastructure responsible for enforcing IP address anti-spam rules contained a code issue, which was resulting in the delays with SMTP email delivery.<\/p>\n

Next Steps:
– We’re further reviewing the recent update to understand how the code issue was introduced and to understand what prevented it from being detected in our update testing and validation procedures, which will allow us to prevent similar issues in future updates.<\/p>\n

We\u2019ll publish a Post-Incident Report for this event 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\u5916\u90e8\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u53d7\u4fe1\u306b\u9045\u5ef6\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u30fc\u304c Exchange Online \u3067\u5916\u90e8\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u53d7\u4fe1\u3059\u308b\u969b\u306b\u9045\u5ef6\u304c\u767a\u751f\u3057\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8a73\u7d30\u60c5\u5831: \u5f71\u97ff\u306f\u7c21\u6613\u30e1\u30fc\u30eb\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb (SMTP) \u306b\u56fa\u6709\u3067\u3057\u305f\u3002\u307b\u3068\u3093\u3069\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u6700\u59271\u6642\u9593\u306e\u9045\u5ef6\u3092\u7d4c\u9a13\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u6700\u592724\u6642\u9593\u306e\u9045\u5ef6\u306b\u906d\u9047\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u8005\u306f\u3001”451 4.7.500 Server busy” \u30a8\u30e9\u30fc \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u542b\u3080\u914d\u4fe1\u4e0d\u80fd\u30ec\u30dd\u30fc\u30c8 (NDR) \u3092\u53d7\u4fe1\u3057\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u914d\u4fe1\u3092\u518d\u8a66\u884c\u3057\u3088\u3046\u3068\u3057\u3066\u6700\u5927 24 \u6642\u9593\u5f8c\u306b\u914d\u4fe1\u3055\u308c\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6700\u7d42\u30b9\u30c6\u30fc\u30bf\u30b9: \u5f71\u97ff\u3092\u5f15\u304d\u8d77\u3053\u3057\u305f\u30b3\u30fc\u30c9\u306e\u554f\u984c\u306e\u7684\u3092\u7d5e\u3063\u305f\u5fa9\u5e30\u3067\u3042\u3063\u305f\u5909\u66f4\u306e\u30c7\u30d7\u30ed\u30a4\u304c\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3067\u8efd\u6e1b\u7b56\u304c\u8efd\u6e1b\u3055\u308c\u308b\u306f\u305a\u3067\u3059\u304c\u3001\u5909\u66f4\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u6b21\u306e 1 \u6642\u9593\u306b\u308f\u305f\u3063\u3066\u6b8b\u308a\u306e\u9045\u5ef6\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u306e\u7bc4\u56f2: \u5f71\u97ff\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3092\u901a\u3058\u3066\u30b5\u30fc\u30d3\u30b9\u3092\u53d7\u3051\u305f\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u56fa\u6709\u3067\u3057\u305f\u3002\u3053\u306e\u554f\u984c\u306f\u3001\u4e16\u754c\u4e2d\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3057\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u4e00\u90e8\u306b\u306e\u307f\u5f71\u97ff\u3057\u305f\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u5f71\u97ff\u3092\u53d7\u3051\u305f\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

\u958b\u59cb\u6642\u523b: 2023 \u5e74 10 \u6708 9 \u65e5\u6708\u66dc\u65e5\u5348\u5f8c 9:00 UTC<\/p>\n

\u7d42\u4e86\u6642\u9593: 2023 \u5e74 10 \u6708 11 \u65e5\u6c34\u66dc\u65e5\u5348\u5f8c 5:00 UTC<\/p>\n

\u66ab\u5b9a\u7684\u306a\u6839\u672c\u539f\u56e0: IP \u30a2\u30c9\u30ec\u30b9\u306e\u30b9\u30d1\u30e0\u5bfe\u7b56\u30eb\u30fc\u30eb\u306e\u9069\u7528\u3092\u62c5\u5f53\u3059\u308b\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u9069\u7528\u3055\u308c\u305f\u6700\u8fd1\u306e\u30b5\u30fc\u30d3\u30b9\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u30b3\u30fc\u30c9\u306e\u554f\u984c\u304c\u542b\u307e\u308c\u3066\u3044\u305f\u305f\u3081\u3001SMTP \u96fb\u5b50\u30e1\u30fc\u30eb\u914d\u4fe1\u304c\u9045\u5ef6\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n

\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
– \u30b3\u30fc\u30c9\u306e\u554f\u984c\u304c\u5c0e\u5165\u3055\u308c\u305f\u65b9\u6cd5\u3092\u7406\u89e3\u3057\u3001\u66f4\u65b0\u306e\u30c6\u30b9\u30c8\u3068\u691c\u8a3c\u306e\u624b\u9806\u3067\u691c\u51fa\u3055\u308c\u306a\u304b\u3063\u305f\u539f\u56e0\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u6700\u8fd1\u306e\u66f4\u65b0\u3092\u3055\u3089\u306b\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5f8c\u30ec\u30dd\u30fc\u30c8\u306f\u30015\u55b6\u696d\u65e5\u4ee5\u5185\u306b\u516c\u958b\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

EX680695 | Exchange Online | Some users may encounter delays receiving external email messages in Exchange Onl […]<\/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-3588","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/3588","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=3588"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/3588\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=3588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=3588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=3588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}