{"id":16516,"date":"2026-05-27T08:01:54","date_gmt":"2026-05-26T23:01:54","guid":{"rendered":"https:\/\/m365jp.net\/?p=16516"},"modified":"2026-05-27T08:06:30","modified_gmt":"2026-05-26T23:06:30","slug":"mc1323263-microsoft-defender-for-office-365-zap-expands-cleanup-to-deleted-items","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-05-27-mc1323263-microsoft-defender-for-office-365-zap-expands-cleanup-to-deleted-items","title":{"rendered":"MC1323263 | Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1323263 | Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items<\/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\/26\/2026 22:10:46<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>05\/26\/2026 22:10:34<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>08\/31\/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>  <\/p>\n<p>We are extending <b>Zero-hour Auto Purge (ZAP)<\/b> in Microsoft Defender for Office 365 to scan and remediate malicious messages located in users\u2019  <b>Deleted Items<\/b> folders. This enhancement strengthens post-delivery protection by ensuring phishing, spam, and malware messages are removed even after a user deletes or reports them, improving overall tenant security without introducing new policies or   configuration.<\/p>\n<p><b>[Rollout Schedule:]<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>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 July 2026<\/b>.<\/li>\n<p>  <\/ul>\n<p><b>[Impact on Your Organization:]<\/b><\/p>\n<p>  <\/p>\n<p><b>Who is affected:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>All tenants using Exchange Online Protection or Microsoft Defender for Office 365 Plan 1 or Plan 2 with ZAP enabled<\/li>\n<p>  <\/ul>\n<p><b>Platforms\/Services:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>Exchange Online<\/li>\n<p>  <\/p>\n<li>Microsoft Defender for Office 365<\/li>\n<p>  <\/p>\n<li>Outlook (desktop, web, mobile)<\/li>\n<p>  <\/ul>\n<p><b>What will happen:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>ZAP will retroactively scan and take action on malicious messages found in the  <b>Deleted Items<\/b> folder within the ZAP detection window.<\/li>\n<li>This includes messages that were:\n<ul>\n<li>Reported by users as phishing<\/li>\n<li>Automatically moved after accepting calendar invitations<\/li>\n<li>Manually deleted by users<\/li>\n<\/ul>\n<\/li>\n<li>Messages identified as malicious will follow existing policy actions (for example,  <b>move to Junk, quarantine<\/b>).<\/li>\n<li>No new policies, actions, or configuration settings are introduced.<\/li>\n<li>Admins will see additional ZAP activity in existing reports and alerts.<\/li>\n<li>A new <b>SourceLocation <\/b>column will be added to the <code>EmailPostDeliveryEvents  <\/code><b><\/b>table in Advanced Hunting to indicate the originating folder (for example,  <code>DeletedItems<\/code>).<\/li>\n<li>User experience remains unchanged.<\/li>\n<\/ul>\n<p><b>[Action Required \/ Recommendations:]<\/b><\/p>\n<p><b>No action is required.<\/b><\/p>\n<p>This change is <b>enabled by default <\/b>and respects your existing anti\u2011spam, anti\u2011phishing, and anti\u2011malware policies.<\/p>\n<p><b>Recommended actions for admins:<\/b><\/p>\n<ul>\n<li>Review existing ZAP-related reporting in<b> Mail flow<\/b> status and <b>Threat Explorer<\/b> to help your  <b>Security Operations Center (SOC)<\/b> become familiar with the additional activity.<\/li>\n<li>Update internal security documentation or helpdesk guidance to note that Deleted Items are now included in ZAP remediation.<\/li>\n<\/ul>\n<p><b>Learn more: <\/b><a href=\"https:\/\/learn.microsoft.com\/defender-office-365\/zero-hour-auto-purge\" target=\"_blank\">Zero-hour auto purge (ZAP) in Microsoft Defender for Office 365 | Microsoft Learn<\/a><\/p>\n<p><b>[Compliance Considerations:]<\/b><\/p>\n<table class=\"table table-bordered\">\n<tbody>\n<tr>\n<td><b>Compliance Question<\/b><\/td>\n<td><b>Explanation<\/b><\/td>\n<\/tr>\n<tr>\n<td>Does the change alter how existing customer data is processed, stored, or accessed?<\/td>\n<td>ZAP will now process and take action on emails located in the Deleted Items folder.  <\/td>\n<\/tr>\n<tr>\n<td>Does the change alter how admins can monitor, report on, or demonstrate compliance activities?<\/td>\n<td>Additional ZAP actions will appear in existing reports, and a new <b>SourceLocation<\/b> field is added to Advanced Hunting to improve auditability and investigation accuracy.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<p><b>[\u4f55\u3068\u306a\u305c:]<\/b><\/p>\n<p>  <\/p>\n<p>Microsoft Defender for Office 365\u3067\u30bc\u30ed <b>\u30a2\u30ef\u30fc\u81ea\u52d5\u30d1\u30fc\u30b8(ZAP)<\/b> \u3092\u62e1\u5f35\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e <b>\u524a\u9664\u6e08\u307f\u30d5\u30a9\u30eb\u30c0<\/b> \u306b\u3042\u308b\u60aa\u610f\u306e\u3042\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u4fee\u6b63\u3057\u307e\u3059\u3002\u3053\u306e\u5f37\u5316\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u524a\u9664\u3084\u5831\u544a\u3092\u884c\u3063\u305f\u5f8c\u3082\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3001\u30b9\u30d1\u30e0\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u524a\u9664\u3055\u308c\u3001\u65b0\u305f\u306a\u30dd\u30ea\u30b7\u30fc\u3084\u8a2d\u5b9a\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u306a\u304f\u30c6\u30ca\u30f3\u30c8\u5168\u4f53\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><b>[\u5c55\u958b\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb:]<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>\u4e00\u822c\u7a3c\u50cd(\u4e16\u754c\u3001GCC\u3001GCC High\u3001DoD): <b>2026\u5e746\u6708\u521d<\/b> \u65ec\u306b\u5c55\u958b\u3092\u958b\u59cb\u3057\u3001 <b>2026\u5e747\u6708\u4e0b\u65ec<\/b>\u307e\u3067\u306b\u5b8c\u4e86\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/li>\n<p>  <\/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><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>Exchange\u30aa\u30f3\u30e9\u30a4\u30f3\u4fdd\u8b77\u307e\u305f\u306fMicrosoft Defender for Office 365\u30d7\u30e9\u30f31\u307e\u305f\u306f\u30d7\u30e9\u30f32\u3092ZAP\u6709\u52b9\u306b\u4f7f\u7528\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30c6\u30ca\u30f3\u30c8<\/li>\n<p>  <\/ul>\n<p><b>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\/\u30b5\u30fc\u30d3\u30b9:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>\u30a8\u30af\u30b9\u30c1\u30a7\u30f3\u30b8\u30fb\u30aa\u30f3\u30e9\u30a4\u30f3<\/li>\n<p>  <\/p>\n<li>Microsoft Defender for Office 365<\/li>\n<p>  <\/p>\n<li>Outlook(\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u3001\u30a6\u30a7\u30d6\u3001\u30e2\u30d0\u30a4\u30eb)<\/li>\n<p>  <\/ul>\n<p><b>\u4eca\u5f8c\u306e\u5c55\u958b:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>ZAP\u306f\u3001ZAP\u691c\u51fa\u30a6\u30a3\u30f3\u30c9\u30a6\u5185\u306e <b>\u300c\u524a\u9664\u6e08\u307f\u30a2\u30a4\u30c6\u30e0<\/b> \u300d\u30d5\u30a9\u30eb\u30c0\u5185\u306e\u60aa\u610f\u306e\u3042\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9061\u3063\u3066\u30b9\u30ad\u30e3\u30f3\u3057\u3001\u5bfe\u5fdc\u3092\u884c\u3044\u307e\u3059\u3002<\/li>\n<li>\u3053\u308c\u306b\u306f\u4ee5\u4e0b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u542b\u307e\u308c\u307e\u3059:\n<ul>\n<li>\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3068\u3057\u3066\u5831\u544a\u3055\u308c\u307e\u3057\u305f<\/li>\n<li>\u30ab\u30ec\u30f3\u30c0\u30fc\u62db\u5f85\u3092\u53d7\u3051\u5165\u308c\u305f\u5f8c\u3001\u81ea\u52d5\u7684\u306b\u79fb\u52d5\u3057\u307e\u3057\u305f<\/li>\n<li>\u30e6\u30fc\u30b6\u30fc\u306b\u3088\u3063\u3066\u624b\u52d5\u3067\u524a\u9664\u3055\u308c\u307e\u3057\u305f<\/li>\n<\/ul>\n<\/li>\n<li>\u60aa\u610f\u306e\u3042\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u65e2\u5b58\u306e\u30dd\u30ea\u30b7\u30fc\u64cd\u4f5c(\u4f8b\u3048\u3070\u3001 <b>\u8ff7\u3044\u30e1\u30fc\u30eb\u306b\u79fb\u52d5\u3001\u9694\u96e2<\/b>)\u306b\u5f93\u3063\u3066\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u65b0\u3057\u3044\u30dd\u30ea\u30b7\u30fc\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u3001\u8a2d\u5b9a\u306f\u4e00\u5207\u5c0e\u5165\u3055\u308c\u307e\u305b\u3093\u3002<\/li>\n<li>\u7ba1\u7406\u8005\u306f\u65e2\u5b58\u306e\u30ec\u30dd\u30fc\u30c8\u3084\u30a2\u30e9\u30fc\u30c8\u3067\u8ffd\u52a0\u306eZAP\u6d3b\u52d5\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u65b0\u3057\u3044 <b>SourceLocation <\/b>\u5217\u304cAdvanced Hunting\u306e <code>EmailPostDeliveryEvents <\/code>  <b><\/b>\u30c6\u30fc\u30d6\u30eb\u306b\u8ffd\u52a0\u3055\u308c\u3001\u767a\u4fe1\u30d5\u30a9\u30eb\u30c0(\u4f8b: <code>DeletedItems<\/code>)\u304c\u793a\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306f\u5909\u308f\u3063\u3066\u3044\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<p><b>[\u884c\u52d5\u304c\u5fc5\u8981\/\u63a8\u5968\u4e8b\u9805:]<\/b><\/p>\n<p><b>\u4f55\u306e\u5bfe\u5fdc\u3082\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002<\/b><\/p>\n<p>\u3053\u306e\u5909\u66f4\u306f <b>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6709\u52b9 <\/b>\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u65e2\u5b58\u306e\u30a2\u30f3\u30c1\u30b9\u30d1\u30e0\u3001\u30a2\u30f3\u30c1\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3001\u30a2\u30f3\u30c1\u30de\u30eb\u30a6\u30a7\u30a2\u30dd\u30ea\u30b7\u30fc\u3092\u5c0a\u91cd\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><b>\u7ba1\u7406\u8005\u306b\u63a8\u5968\u3055\u308c\u308b\u884c\u52d5:<\/b><\/p>\n<ul>\n<li><b>\u30e1\u30fc\u30eb\u30d5\u30ed\u30fc<\/b>\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3084<b>Threat Explorer<\/b>\u3067\u65e2\u5b58\u306eZAP\u95a2\u9023\u5831\u544a\u3092\u78ba\u8a8d\u3057\u3001<b>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u30bb\u30f3\u30bf\u30fc(SOC<\/b>)\u304c\u8ffd\u52a0\u306e\u6d3b\u52d5\u306b\u6163\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<li>\u5185\u90e8\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3084\u30d8\u30eb\u30d7\u30c7\u30b9\u30af\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u3092\u66f4\u65b0\u3057\u3001\u524a\u9664\u3055\u308c\u305f\u9805\u76ee\u304cZAP\u306e\u4fee\u5fa9\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<p><b>\u8a73\u3057\u304f\u306f\u3053\u3061\u3089: <\/b><a href=\"https:\/\/learn.microsoft.com\/defender-office-365\/zero-hour-auto-purge\" target=\"_blank\">Microsoft Defender for Office 365\u306b\u304a\u3051\u308b\u30bc\u30ed\u30a2\u30ef\u30fc\u81ea\u52d5\u30d1\u30fc\u30b8(ZAP) |Microsoft Learn<\/a><\/p>\n<p><b>[\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u4e0a\u306e\u8003\u616e\u4e8b\u9805:]<\/b><\/p>\n<table class=\"table table-bordered\">\n<tbody>\n<tr>\n<td><b>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306b\u95a2\u3059\u308b\u8cea\u554f<\/b><\/td>\n<td><b>\u8aac\u660e<\/b><\/td>\n<\/tr>\n<tr>\n<td>\u3053\u306e\u5909\u66f4\u306f\u65e2\u5b58\u306e\u9867\u5ba2\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u3001\u4fdd\u5b58\u3001\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3092\u5909\u3048\u307e\u3059\u304b?<\/td>\n<td>ZAP\u306f\u524a\u9664\u6e08\u307f\u30d5\u30a9\u30eb\u30c0\u5185\u306e\u30e1\u30fc\u30eb\u3092\u51e6\u7406\u3057\u3001\u5bfe\u5fdc\u3092\u884c\u3044\u307e\u3059\u3002  <\/td>\n<\/tr>\n<tr>\n<td>\u3053\u306e\u5909\u66f4\u306f\u7ba1\u7406\u8005\u304c\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u6d3b\u52d5\u3092\u76e3\u8996\u3001\u5831\u544a\u3001\u307e\u305f\u306f\u793a\u3059\u65b9\u6cd5\u306b\u5909\u5316\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u304b?<\/td>\n<td>\u8ffd\u52a0\u306eZAP\u30a2\u30af\u30b7\u30e7\u30f3\u306f\u65e2\u5b58\u306e\u30ec\u30dd\u30fc\u30c8\u306b\u73fe\u308c\u3001\u76e3\u67fb\u3084\u8abf\u67fb\u306e\u7cbe\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306bAdvanced Hunting\u306b\u65b0\u3057\u3044 <b>SourceLocation<\/b> \u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1323263 | Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items Classification stayInforme [&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-16516","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16516","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=16516"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16516\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}