The sender does not know you have external tagging enabled, which is excellent. Reply to an email, and the external tag will not show up in the email message. Older emails that you have do not get the external tag. The new emails that arrive are automatically tagged. PS C:\> Get-ExternalInOutlook | Format-TableĢ62c8cb4-da7e-47b0-bcb4-6ce1569061b6 fe15bfe6-36b2-4c9d-bf42-51b995f8e9af True Exchange Online external tag enabledĪfter we set the external tagging feature, we had to wait for 48 hours before the external tag feature did show up. Now that it’s enabled, you can verify by running the Get-ExternalInOutlook cmdlet. PS C:\> Set-ExternalInOutlook -Enabled $true PS C:\> Connect-ExchangeOnline Enable external email tagĮnable external sender identification in supported versions of Outlook.
#MICROSOFT SECURE EMAIL POWER SHELL WINDOWS#
Run Windows PowerShell as administrator and connect to Exchange Online PowerShell. There is no option through the Microsoft 365 Exchange admin center. The only option to enable the tag for external email messages is with Exchange Online PowerShell. In that case, you should disable those rules before you enable this feature to avoid duplication. Suppose your organization already uses mail flow rules (also known as transport rules) to add text to the subject line of messages from external senders. Outlook for Mac: version 16.47 and higher.Outlook mobile (iOS & Android): version 4.2111.0 and higher.Outlook for Windows: available in May 2021 (starting with Insider Fast).This will be achieved by presenting a new tag on emails called “External”. That’s why they created a new PowerShell cmdlet for Exchange Online to enable the protections against spam & phishing threats from external senders. Microsoft is aware that even if you enable SPF, DKIM, and DMARC to prevent phishing and email spam, it’s not enough. User awareness is important, and that’s what the external tag feature will do. Why do you want to add a tag for external received email messages? Even that we have Exchange Online Protection or other spam filters, it’s known that you can’t completely protect the organization from spyware, malicious links. Exchange Online external tag not working.