{"id":14446,"date":"2026-01-08T14:01:06","date_gmt":"2026-01-08T05:01:06","guid":{"rendered":"https:\/\/m365jp.net\/?p=14446"},"modified":"2026-01-08T14:02:19","modified_gmt":"2026-01-08T05:02:19","slug":"investigating-ex1215307-exchange-online-some-users-may-intermittently-be-unable-to-access-their-mailboxes-using-internet-mailbox-access-protocol-4-imap4","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-01-08-investigating-ex1215307-exchange-online-some-users-may-intermittently-be-unable-to-access-their-mailboxes-using-internet-mailbox-access-protocol-4-imap4","title":{"rendered":"[investigating] EX1215307 | Exchange Online | Some users may intermittently be unable to access their mailboxes using Internet Mailbox Access Protocol 4 (IMAP4)"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">EX1215307 | Exchange Online | Some users may intermittently be unable to access their mailboxes using Internet Mailbox Access Protocol 4 (IMAP4)<\/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\">investigating<\/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 may intermittently be unable to access their mailboxes using IMAP4.<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>01\/08\/2026 04:52:58<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>01\/08\/2026 04:35:17<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td><\/td>\n<\/tr>\n<tr>\n<th>Latest Message<\/th>\n<td>Title: Some users may intermittently be unable to access their mailboxes using Internet Mailbox Access Protocol 4 (IMAP4)<\/p>\n<p>  User impact: Users may intermittently be unable to access their mailboxes using IMAP4.<\/p>\n<p>  Current status: We&#8217;re investigating a potential issue with Exchange Online and checking for impact to your organization. We&#8217;ll provide an update within 30 minutes.<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\u30bf\u30a4\u30c8\u30eb:\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u30a2\u30af\u30bb\u30b9\u30d7\u30ed\u30c8\u30b3\u30eb4(IMAP4)\u3092\u4f7f\u7528\u3057\u3066\u3001\u65ad\u7d9a\u7684\u306b\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>  \u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:IMAP4\u3092\u4f7f\u3063\u3066\u30e1\u30fc\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>  \u73fe\u72b6:Exchange Online\u306b\u95a2\u3059\u308b\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u8abf\u67fb\u3057\u3066\u304a\u308a\u3001\u8cb4\u7d44\u7e54\u3078\u306e\u5f71\u97ff\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u300230\u5206\u4ee5\u5185\u306b\u6700\u65b0\u60c5\u5831\u3092\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>EX1215307 | Exchange Online | Some users may intermittently be unable to access their mailboxes using Internet [&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-14446","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14446","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=14446"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14446\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=14446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=14446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=14446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}