{"id":12224,"date":"2025-07-15T05:00:55","date_gmt":"2025-07-14T20:00:55","guid":{"rendered":"https:\/\/m365jp.net\/?p=12224"},"modified":"2025-07-15T05:13:51","modified_gmt":"2025-07-14T20:13:51","slug":"investigationsuspended-ex1115062-exchange-online-awareness-only-organizations-that-leverage-proofpoint-may-have-been-unable-to-send-exchange-online-email-messages-2","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-07-15-investigationsuspended-ex1115062-exchange-online-awareness-only-organizations-that-leverage-proofpoint-may-have-been-unable-to-send-exchange-online-email-messages-2","title":{"rendered":"[investigationSuspended] EX1115062 | Exchange Online | Awareness only &#8211; Organizations that leverage Proofpoint may have been unable to send Exchange Online email messages"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">EX1115062 | Exchange Online | Awareness only &#8211; Organizations that leverage Proofpoint may have been unable to send Exchange Online email messages<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Status<\/th>\n<td class=\"bad\">investigationSuspended<\/td>\n<\/tr>\n<tr>\n<th>Classification<\/th>\n<td>advisory<\/td>\n<\/tr>\n<tr>\n<th>User Impact<\/th>\n<td>Users were unable to send Exchange Online email messages.<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>07\/14\/2025 19:43:57<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>07\/14\/2025 13:28:00<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>07\/14\/2025 18:07:43<\/td>\n<\/tr>\n<tr>\n<th>Latest Message<\/th>\n<td>Title: Awareness only &#8211; Organizations that leverage Proofpoint may have been unable to send Exchange Online email messages<\/p>\n<p>  User impact: Users were unable to send Exchange Online email messages.<\/p>\n<p>  More info: Users may have seen email deferrals with Reason: [{LED=450 4.4.312 DNS query failed [Message=ServerFailure] key for validation pphosted.com. is marked as invalid because of a previous signature crypto failed<\/p>\n<p>  Proofpoint provided updates here: <a href=\"https:\/\/proofpoint.my.site.com\/community\/s\/proofpoint-current-incidents\">proofpoint.my.site.com\/community\/s\/proofpoint-current-incidents<\/a><\/p>\n<p>  Final status: Throughout the issue, we&#8217;ve confirmed that the Microsoft-managed environment was healthy and performed as expected.<\/p>\n<p>  Due to the impact to user mail flow, we published this notification to provide awareness, and directed organizations to Proofpoint for further information. Per their current incidents page, Proofpoint have declared resolution.<\/p>\n<p>  The \u2018More info\u2019 section provides a link to where Proofpoint were providing updates on the issue.<\/p>\n<p>  Scope of impact: Impact was limited to organizations that leverage Proofpoint.<\/p>\n<p>  This is the final update for this event.<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\u30bf\u30a4\u30c8\u30eb: Awareness only &#8211; Proofpoint \u3092\u6d3b\u7528\u3057\u3066\u3044\u308b\u7d44\u7e54\u306f\u3001Exchange Online \u306e\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3067\u304d\u306a\u304b\u3063\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/p>\n<p>  \u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff: \u30e6\u30fc\u30b6\u30fc\u304c Exchange Online \u306e\u96fb\u5b50\u30e1\u30fc\u30eb \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<p>  \u8a73\u7d30\u60c5\u5831: \u30e6\u30fc\u30b6\u30fc\u306f\u3001\u7406\u7531: [{LED=450 4.4.312 DNS query failed [Message=ServerFailure] key for validation pphosted.com. is marked as invalid due of previous signature crypto failed \u3068\u3044\u3046\u30e1\u30fc\u30eb\u306e\u9045\u5ef6\u3092\u898b\u305f\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>  Proofpoint\u306f\u3053\u3053\u3067\u6700\u65b0\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u3057\u305f:https:\/\/proofpoint.my.site.com\/community\/s\/proofpoint-current-incidents<\/p>\n<p>  \u6700\u7d42\u30b9\u30c6\u30fc\u30bf\u30b9: \u554f\u984c\u5168\u4f53\u3092\u901a\u3058\u3066\u3001Microsoft \u304c\u7ba1\u7406\u3059\u308b\u74b0\u5883\u304c\u6b63\u5e38\u3067\u3001\u671f\u5f85\u3069\u304a\u308a\u306b\u6a5f\u80fd\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>  \u30e6\u30fc\u30b6\u30fc\u306e\u30e1\u30fc\u30eb\u30d5\u30ed\u30fc\u3078\u306e\u5f71\u97ff\u3092\u8003\u616e\u3057\u3001\u3053\u306e\u901a\u77e5\u3092\u516c\u958b\u3057\u3066\u8a8d\u8b58\u3092\u63d0\u4f9b\u3059\u308b\u3068\u3068\u3082\u306b\u3001\u7d44\u7e54\u306b\u8a73\u7d30\u60c5\u5831\u3092\u6c42\u3081\u308b\u305f\u3081\u306bProofpoint\u306b\u6848\u5185\u3057\u307e\u3057\u305f\u3002\u73fe\u5728\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u30da\u30fc\u30b8\u306b\u3088\u308b\u3068\u3001Proofpoint\u306f\u89e3\u6c7a\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>  \u300c\u8a73\u7d30\u60c5\u5831\u300d\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u306f\u3001Proofpoint\u304c\u554f\u984c\u306b\u95a2\u3059\u308b\u6700\u65b0\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3066\u3044\u305f\u5834\u6240\u3078\u306e\u30ea\u30f3\u30af\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>  \u5f71\u97ff\u7bc4\u56f2: \u5f71\u97ff\u306f\u3001\u30d7\u30eb\u30fc\u30d5\u30dd\u30a4\u30f3\u30c8\u3092\u6d3b\u7528\u3059\u308b\u7d44\u7e54\u306b\u9650\u5b9a\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>  \u3053\u308c\u306f\u3001\u3053\u306e\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":"<p>EX1115062 | Exchange Online | Awareness only &#8211; Organizations that leverage Proofpoint may have been unab [&hellip;]<\/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-12224","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12224","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=12224"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/12224\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=12224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=12224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=12224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}