{"id":2274,"date":"2023-07-01T05:00:45","date_gmt":"2023-06-30T20:00:45","guid":{"rendered":"https:\/\/m365jp.xyz\/?p=2274"},"modified":"2023-07-01T05:15:29","modified_gmt":"2023-06-30T20:15:29","slug":"mc455516-updated-automatic-migration-of-legacy-office-365-message-encryption-to-microsoft-purview-message-encryption","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2023-07-01-mc455516-updated-automatic-migration-of-legacy-office-365-message-encryption-to-microsoft-purview-message-encryption","title":{"rendered":"MC455516 | (Updated) Automatic migration of legacy Office 365 Message Encryption to Microsoft Purview Message Encryption"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC455516 | (Updated) Automatic migration of legacy Office 365 Message Encryption to Microsoft Purview Message Encryption<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>planForChange<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>06\/30\/2023 19:01:53<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>11\/04\/2022 01:26:50<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>01\/31\/2024 07:00:00<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<p>Updated June 30, 2023: After retirement, any encrypted mail sent to shared mailbox protected with Microsoft Purview Message Encryption will have a link that can open the mail in Outlook on the web. This provides an equivalent flow to open messages protected   using Office 365 Message Encryption.  <\/p>\n<p>  <\/p>\n<p>As a reminder, the following PowerShell cmdlet parameter will be retired in New\/Set-Transport rule cmdlet:  <\/p>\n<p><code>&nbsp;-ApplyOME&nbsp;<\/code><\/p>\n<p><code>&nbsp;-RemoveOME<\/code>  <\/p>\n<p><b>Note:&nbsp;<\/b>If you use the Exchange Admin Center to create\/modify a mail flow rule, the action will fail with a message to indicate the above functions have been retired.  <\/p>\n<p>Microsoft Purview Message Encryption will replace and retire the legacy Office 365 Message Encryption (OME) in the Exchange admin center. If you don\u2019t do anything, Microsoft will process all mail flow rules that currently applies OME protection to Microsoft   Purview Message Encryption protection. With this change, recipients will receive a much more customizable notification mail.&nbsp;  <\/p>\n<p>Retirement of OMEv1 is coming in 2 phases  <\/p>\n<ul>\n<li>on June 30th OMEv1 mail flow rules become read-only or delete-only. No new rules or rule modifications will be allowed. These rules will be encrypt\/decrypt with OMEv1  <\/li>\n<li>One Dec 31 the OME v1 mail flow rules will be fully retired. All the OMEv1 rules will be automatcially process as OMEv2  <\/li>\n<\/ul>\n<p>For customers who need an exception to do OMEv1 mail flow rule updates between June 30th and Dec 31st, open a support ticket to request the exception.<\/p>\n<p>Finally, we recommend all customers that use OMEv1 to receive email into a shared mailbox we highly recommend requesting the exception. We are targeting to release additional changes in Q3CY23 that will improve the shared mailbox experience.  <\/p>\n<p>[How this will affect your organization:]<\/p>\n<p>Microsoft Purview Message Encryption is a more secure and flexible solution to provide encrypted mail to anyone inside or outside your organization, with an enhanced user experience for recipients. For example, with OME, all recipients receive an HTML attachment   to open an encrypted mail. This has been greatly improved with Outlook clients for Microsoft 365 users who can now view the message inline. Non-Microsoft 365 users will instead receive a linked-based experience to open the mail. Additionally, supported attachments   are also encrypted on download to protect sensitive data at rest.&nbsp;&nbsp;<\/p>\n<p>Office 365 Message Encryption<br \/>  <img decoding=\"async\" style=\"width: 400px;\" src=\"https:\/\/img-prod-cms-rt-microsoft-com.akamaized.net\/cms\/api\/am\/imageFileData\/RE5bX8j?ver=1d81\">  <\/p>\n<p>Microsoft Purview Message Encryption<br \/>  <img decoding=\"async\" style=\"width: 400px;\" src=\"https:\/\/img-prod-cms-rt-microsoft-com.akamaized.net\/cms\/api\/am\/imageFileData\/RE5bUuV?ver=7eaa\">  <\/p>\n<p>The behavioral differences and different types of recipients are described in the following table.<\/p>\n<p>  <\/p>\n<table>  <\/p>\n<tbody>\n<tr>  <\/p>\n<th><\/th>\n<p>  <\/p>\n<th>Currently OME mail flows<\/th>\n<p>  <\/p>\n<th>Deprecated OME mail flows<\/th>\n<p>  <\/tr>\n<p>  <\/p>\n<tr>  <\/p>\n<th>Mail body branding<\/th>\n<p>  <\/p>\n<td>\u201cOffice 365 Message Encryption&#8221;<\/td>\n<p>  <\/p>\n<td>\u201cMicrosoft Purview Message Encryption&#8221;<\/td>\n<p>  <\/tr>\n<p>  <\/p>\n<tr>  <\/p>\n<th>Internal M365 recipients experience<\/th>\n<p>  <\/p>\n<td>Any client will contain an html attachment, open the attachment to open mail in OME portal.<\/td>\n<p>  <\/p>\n<td>Supported Outlook client with inline experience with a message.rpmsg. <br \/>  Any unsupported client will show notification mail with URL link to open mail in Outlook on the Web. (This is also true for users on Exchange on-premises mailbox.&#8221;  <\/td>\n<p>  <\/tr>\n<p>  <\/p>\n<tr>  <\/p>\n<th>External M365 recipients experience<\/th>\n<p>  <\/p>\n<td>Any client will contain an html attachment, open the attachment to open mail in OME portal.<\/td>\n<p>  <\/p>\n<td>Any client will show notification mail with URL link to open mail in Microsoft Purview encrypted message portal; there is no attachment in mail.  <\/p>\n<p>  Mail flow rules can be modified to provide same behavior as internal recipients above.**    <\/td>\n<p>  <\/tr>\n<p>  <\/p>\n<tr>  <\/p>\n<th>(External) Non-M365 recipients experience<\/th>\n<p>  <\/p>\n<td>\n<p>Any client will contain an html attachment, open the attachment to open mail in OME portal.<\/p>\n<p>  After mail is opened in the portal, mail and attachment can be viewed. <br \/>  All attachments are downloaded without encryption  <\/p>\n<\/td>\n<p>  <\/p>\n<td>Any client will show notification mail with URL link to open mail in Microsoft Purview encrypted message portal; there is no attachment in mail.  <\/p>\n<p>  After mail is opened in the portal, mail and attachment can be viewed. <br \/>  Office documents are downloaded with encryption if no changes are made by admins.*    <\/td>\n<p>  <\/tr>\n<\/tbody>\n<\/table>\n<p>  <\/p>\n<p>  <\/p>\n<p>*The encrypted attachments provide extra security by protecting the stored file at rest. Applications that can open Office documents may not be compatible with RMS protected Office documents. Admins can provide the same behavior as OME by enabling a global   configuration to download Encrypt-only attachments without encryption: <i>Set-IrmConfiguration \u2013 DecryptAttachmentForEncryptOnly $true  <br \/>  <\/i><\/p>\n<p>  <\/p>\n<p>**By modifying existing the mail flow rules to apply Purview Message Encryption protection, external M365 recipients will receive encrypted mail containing a message.rpmsg attachment and supported Outlook clients can provide show the mail content directly   in the application.  <\/p>\n<p>[What you need to do to prepare:]  <\/p>\n<p>If you want to compare the behavior before the deprecation, you can modify and test the changes with your mail flow rules by following the steps outlined in this documentation:  <a href=\"https:\/\/learn.microsoft.com\/microsoft-365\/compliance\/set-up-new-message-encryption-capabilities?redirectSourcePath=%252fen-us%252farticle%252fSet-up-new-Office-365-Message-Encryption-capabilities-built-on-top-of-Azure-Information-Protection-7ff0c040-b25c-4378-9904-b1b50210d00e&amp;view=o365-worldwide#next-steps-define-mail-flow-rules-to-use-microsoft-purview-message-encryption\" target=\"_blank\" rel=\"noopener\">  Define mail flow rules to use Microsoft Purview Message Encryption<\/a><\/p>\n<p>Learn more: <a href=\"https:\/\/learn.microsoft.com\/microsoft-365\/compliance\/ome?view=o365-worldwide#how-message-encryption-works\" target=\"_blank\" rel=\"noopener\">  How Microsoft Purview Message Encryption works&nbsp;<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC455516 | (Updated) Automatic migration of legacy Office 365 Message Encryption to Microsoft Purview Message  [&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-2274","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/2274","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=2274"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/2274\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=2274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=2274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=2274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}