{"id":16486,"date":"2026-05-23T08:01:25","date_gmt":"2026-05-22T23:01:25","guid":{"rendered":"https:\/\/m365jp.net\/?p=16486"},"modified":"2026-05-23T08:02:59","modified_gmt":"2026-05-22T23:02:59","slug":"mc1319208-microsoft-outlook-external-email-tag-now-supported-in-inbox-rules","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-05-23-mc1319208-microsoft-outlook-external-email-tag-now-supported-in-inbox-rules","title":{"rendered":"MC1319208 | Microsoft Outlook: External email tag now supported in Inbox Rules"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1319208 | Microsoft Outlook: External email tag now supported in Inbox Rules<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>stayInformed<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>05\/22\/2026 22:19:29<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>05\/22\/2026 22:19:15<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>07\/30\/2026 07:00:00<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<p><b>[What and Why:]<\/b><\/p>\n<p>We&#8217;re enhancing Outlook Inbox Rules by allowing the <b>External <\/b>email tag to be used as a rule condition. This tag is applied by the  <code>ExternalInOutlook<\/code> feature and helps identify messages that originate outside your organization. This update improves productivity by giving users more control over how external emails are organized and prioritized.<\/p>\n<p>This message is associated with Roadmap ID&nbsp;<a href=\"https:\/\/www.microsoft.com\/microsoft-365\/roadmap?filters=&amp;searchterms=563806\" target=\"_blank\">563806<\/a>.<\/p>\n<p><b>[Rollout Schedule:]<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/ul>\n<p>General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out in  <b>early June 2026<\/b> and expect to complete by <b>late June 2026<\/b>.<\/p>\n<ul>  <\/ul>\n<p><b>[Impact on Your Organization:]<\/b><\/p>\n<p>  <\/p>\n<p><b>Who is affected:<\/b> All Outlook users and Exchange Online admins in tenants with  <code>ExternalInOutlook<\/code> enabled.<\/p>\n<p>  <\/p>\n<p><b>Platforms\/Services:<\/b> <\/p>\n<ul>\n<li>Outlook for Windows (new)<\/li>\n<li>Outlook on the web<\/li>\n<li>Outlook for Mac<\/li>\n<li>Exchange Online<\/li>\n<\/ul>\n<p>  <\/p>\n<p><b>What will happen:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>Users can create Inbox Rules using the External email condition.<\/li>\n<p>  <\/p>\n<li>Rules can automatically move or categorize external messages.<\/li>\n<p>  <\/p>\n<li>Rule management is supported across modern Outlook clients.<\/li>\n<p>  <\/p>\n<li>The feature is enabled by default where <code>ExternalInOutlook<\/code> is already in use.<\/li>\n<p>  <\/ul>\n<p><b>[Action Required \/ Recommendations:]<\/b><\/p>\n<ul>\n<li>No action is required. <\/li>\n<li>Admins may review <code>ExternalInOutlook<\/code> settings and update internal guidance or helpdesk documentation as appropriate.<\/li>\n<\/ul>\n<p><b>Learn more: <\/b><a href=\"https:\/\/learn.microsoft.com\/powershell\/module\/exchangepowershell\/set-externalinoutlook?view=exchange-ps\" target=\"_blank\">Set-ExternalInOutlook | Microsoft Learn<\/a><\/p>\n<p><b>[Compliance Considerations:]<\/b><\/p>\n<p>This change enables additional processing of existing email metadata but does not introduce new data types or alter data storage.<\/p>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<p><b>[\u4f55\u3068\u306a\u305c:]<\/b><\/p>\n<p>Outlook\u306e\u53d7\u4fe1\u30c8\u30ec\u30a4\u30eb\u30fc\u30eb\u3092\u5f37\u5316\u3059\u308b\u305f\u3081\u3001 <b>\u5916\u90e8 <\/b>\u30e1\u30fc\u30eb\u30bf\u30b0\u3092\u30eb\u30fc\u30eb\u6761\u4ef6\u3068\u3057\u3066\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30bf\u30b0\u306f <code>ExternalInOutlook<\/code> \u6a5f\u80fd\u306b\u3088\u3063\u3066\u9069\u7528\u3055\u308c\u3001\u7d44\u7e54\u5916\u304b\u3089\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u7279\u5b9a\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306f\u3001\u5916\u90e8\u30e1\u30fc\u30eb\u306e\u6574\u7406\u3084\u512a\u5148\u9806\u4f4d\u4ed8\u3051\u3092\u3088\u308a\u81ea\u7531\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u751f\u7523\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306fRoadmap ID&nbsp;<a href=\"https:\/\/www.microsoft.com\/microsoft-365\/roadmap?filters=&amp;searchterms=563806\" target=\"_blank\">563806<\/a>\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><b>[\u5c55\u958b\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb:]<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/ul>\n<p>\u4e00\u822c\u7a3c\u50cd\u72b6\u6cc1(\u4e16\u754c\u3001GCC\u3001GCC High\u3001DoD): <b>2026\u5e746\u6708\u521d<\/b> \u65ec\u306b\u5c55\u958b\u3092\u958b\u59cb\u3057\u3001 <b>2026\u5e746\u6708\u4e0b\u65ec<\/b>\u307e\u3067\u306b\u5b8c\u4e86\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n<ul>  <\/ul>\n<p><b>[\u7d44\u7e54\u3078\u306e\u5f71\u97ff:]<\/b><\/p>\n<p>  <\/p>\n<p><b>\u5f71\u97ff\u3092\u53d7\u3051\u308b\u4eba\u7269:<\/b><code>ExternalInOutlook<\/code>\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u30c6\u30ca\u30f3\u30c8\u5185\u306e\u3059\u3079\u3066\u306eOutlook\u30e6\u30fc\u30b6\u30fc\u3068Exchange Online\u7ba1\u7406\u8005\u3002<\/p>\n<p>  <\/p>\n<p><b>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\/\u30b5\u30fc\u30d3\u30b9:<\/b> <\/p>\n<ul>\n<li>Outlook(\u65b0)<\/li>\n<li>\u30a6\u30a7\u30d6\u4e0a\u306e\u5c55\u671b<\/li>\n<li>Outlook for Mac<\/li>\n<li>\u30a8\u30af\u30b9\u30c1\u30a7\u30f3\u30b8\u30fb\u30aa\u30f3\u30e9\u30a4\u30f3<\/li>\n<\/ul>\n<p>  <\/p>\n<p><b>\u4eca\u5f8c\u306e\u5c55\u958b:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>\u30e6\u30fc\u30b6\u30fc\u306f\u5916\u90e8\u30e1\u30fc\u30eb\u6761\u4ef6\u3092\u4f7f\u3063\u3066\u53d7\u4fe1\u30c8\u30ec\u30a4\u30eb\u30fc\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/li>\n<p>  <\/p>\n<li>\u30eb\u30fc\u30eb\u306f\u5916\u90e8\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u81ea\u52d5\u7684\u306b\u79fb\u52d5\u307e\u305f\u306f\u5206\u985e\u3067\u304d\u307e\u3059\u3002<\/li>\n<p>  <\/p>\n<li>\u30eb\u30fc\u30eb\u7ba1\u7406\u306f\u6700\u65b0\u306eOutlook\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5168\u4f53\u3067\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<p>  <\/p>\n<li>\u3053\u306e\u6a5f\u80fd\u306f\u3059\u3067\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b <code>ExternalInOutlook<\/code> \u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6709\u52b9\u3067\u3059\u3002<\/li>\n<p>  <\/ul>\n<p><b>[\u884c\u52d5\u304c\u5fc5\u8981\/\u63a8\u5968\u4e8b\u9805:]<\/b><\/p>\n<ul>\n<li>\u4f55\u306e\u5bfe\u5fdc\u3082\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002 <\/li>\n<li>\u7ba1\u7406\u8005\u306f <code>ExternalInOutlook<\/code> \u8a2d\u5b9a\u3092\u78ba\u8a8d\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u5185\u90e8\u30ac\u30a4\u30c0\u30f3\u30b9\u3084\u30d8\u30eb\u30d7\u30c7\u30b9\u30af\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u66f4\u65b0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<p><b>\u8a73\u7d30\u306f\u3053\u3061\u3089: <\/b><a href=\"https:\/\/learn.microsoft.com\/powershell\/module\/exchangepowershell\/set-externalinoutlook?view=exchange-ps\" target=\"_blank\">Set-ExternalInOutlook |Microsoft Learn<\/a><\/p>\n<p><b>[\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u4e0a\u306e\u8003\u616e\u4e8b\u9805:]<\/b><\/p>\n<p>\u3053\u306e\u5909\u66f4\u306b\u3088\u308a\u65e2\u5b58\u306e\u30e1\u30fc\u30eb\u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u578b\u306e\u5c0e\u5165\u3084\u30c7\u30fc\u30bf\u4fdd\u5b58\u306e\u5909\u66f4\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1319208 | Microsoft Outlook: External email tag now supported in Inbox Rules Classification stayInformed Las [&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-16486","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16486","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=16486"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16486\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}