{"id":14359,"date":"2025-12-18T05:01:20","date_gmt":"2025-12-17T20:01:20","guid":{"rendered":"https:\/\/m365jp.net\/?p=14359"},"modified":"2025-12-18T05:08:52","modified_gmt":"2025-12-17T20:08:52","slug":"mc1198702-microsoft-outlook-wait-on-send-for-data-loss-prevention","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-12-18-mc1198702-microsoft-outlook-wait-on-send-for-data-loss-prevention","title":{"rendered":"MC1198702 | Microsoft Outlook: Wait on Send for Data loss Prevention"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1198702 | Microsoft Outlook: Wait on Send for Data loss Prevention<\/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>12\/17\/2025 19:48:01<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>12\/17\/2025 19:47:48<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>04\/01\/2026 07:00:00<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<p><b>[Introduction]<\/b><\/p>\n<p>  <\/p>\n<p><b>New Outlook for Windows will support Wait on Send for Oversharing<\/b>, allowing admins to block email sending if Data Loss Prevention (DLP) policy evaluation is not completed for labeled or sensitive content.<span style=\"background-color: rgb(255, 255, 255);\">   The new experience allows for multi-tasking and does not block the user from using New Outlook even when mail is in evaluation.<\/span><\/p>\n<p>  <\/p>\n<p><span style=\"background-color: rgb(255, 255, 255);\">The wait-on-send experience is controlled through Exchange mailbox parameters:<\/span><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li><span style=\"background-color: rgb(255, 255, 255);\"><b>DLPWaitOnSendEnabled <\/b>  \u2013 Boolean (true or false), Default: false<\/span><\/li>\n<p>  <\/p>\n<li><span style=\"background-color: rgb(255, 255, 255);\"><b>DLPWaitOnSendTimeout<\/b> \u2013 Integer (0\u201310000 seconds), Default: 9999<\/span><\/li>\n<\/ul>\n<p><span style=\"background-color: rgb(255, 255, 255);\">Specifies how long Outlook waits for the DLP evaluation to finish before offering an override.<\/span><\/p>\n<p><span style=\"background-color: rgb(255, 255, 255);\">Example: If the value is set to 25 seconds, Outlook will wait up to 25 seconds for the evaluation to complete before allowing the user to override and send the email without waiting for the evaluation to   finish.<\/span><\/p>\n<p><span style=\"background-color: rgb(255, 255, 255);\"><b>Note:<\/b> This does not stop the evaluation after the set time. It simply allows the user to override while the evaluation continues. If the user prefers, they can wait until the evaluation is fully   completed.<\/span><\/p>\n<p><span style=\"background-color: rgb(255, 255, 255);\">&#8211; When DLPWaitOnSendTimeout = 0, user will immediately see \u201cSend Anyway\u201d in the info bar of mail.&nbsp;<br \/>  <\/span><\/p>\n<p><span style=\"background-color: rgb(255, 255, 255);\">&#8211; When DLPWaitOnSendTimeout &gt;= 9999, user will never be allowed to send the email without DLP evaluation getting completed.&nbsp;<\/span><\/p>\n<ul>  <\/ul>\n<p>  <\/p>\n<p>This message is associated with Microsoft 365 Roadmap ID <a href=\"https:\/\/www.microsoft.com\/microsoft-365\/roadmap?filters=&amp;searchterms=498920\" target=\"_blank\">  498920<\/a>.<\/p>\n<p>  <\/p>\n<p><b>[When this will happen]<\/b><\/p>\n<ul>  <\/p>\n<li>General Availability (Worldwide): Early January 2026 \u2013 Late January 2026<\/li>\n<p>  <\/p>\n<li>General Availability (GCC): Early January 2026 \u2013 Early March 2026<\/li>\n<p>  <\/ul>\n<p>  <\/p>\n<p><b>[How this affects your organization]<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li><b>Who is affected:<\/b> Admins managing New Outlook for Windows users.<\/li>\n<p>  <\/p>\n<li><b>What will happen:<\/b><br \/> \n<ul>  <\/p>\n<li>New Outlook will support Wait on Send for DLP evaluation.<\/li>\n<p>  <\/p>\n<li>Feature is <b>disabled by default<\/b>; admins must enable it via Exchange mailbox settings.<\/li>\n<p>  <\/p>\n<li>Users can continue working while mail is under evaluation.<\/li>\n<p>  <\/p>\n<li>Override behavior depends on <b>DLPWaitOnSendTimeout<\/b> configuration.<\/li>\n<p>  <\/ul>\n<p>  <\/li>\n<p>  <\/ul>\n<p>  <\/p>\n<p><b>[What you can do to prepare]<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>No action required unless you want to enable this feature.<\/li>\n<p>  <\/p>\n<li>To enable, configure Exchange Online mailbox policy settings:<br \/>  <a href=\"https:\/\/learn.microsoft.com\/powershell\/module\/exchangepowershell\/set-organizationconfig?view=exchange-ps\" target=\"_blank\">Set-OrganizationConfig | ExchangePowerShell | Microsoft Learn<\/a><\/li>\n<\/ul>\n<p>Learn more:&nbsp;<a href=\"https:\/\/learn.microsoft.com\/purview\/dlp-ol365-win32-policy-tips#wait-on-send-dialog-support-for-oversharing-for-outlook-for-microsoft-365\" target=\"_blank\">Wait on Send dialog support for Oversharing for Outlook for Microsoft 365 | Microsoft   Learn<\/a><\/p>\n<ul>  <\/ul>\n<p>  <\/p>\n<p><b>[Compliance considerations]<\/b><\/p>\n<p>  <\/p>\n<p>No compliance considerations identified. Review as appropriate for your organization.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1198702 | Microsoft Outlook: Wait on Send for Data loss Prevention Classification stayInformed Last Updated  [&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-14359","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14359","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=14359"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14359\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=14359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=14359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=14359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}