Microsoft Entra Suite Tech Accelerator
Aug 14 2024, 07:00 AM - 09:30 AM (PDT)
Microsoft Tech Community

Pop up window to confirm when sending email with with attachment externally

Iron Contributor



I have been requested to configure a Pop up warning/message for emails sent outside our organization if there is an attachment. We are now running on M365 E3 with M365 E5 Security and I do not have that option there. From what I read, upgrading to M365 E5 would give us "oversharing pop ups" feature. 


Before I will go with upgrading all users to E5, I would like to confirm whether the above would be possible with E5 license?

1 Reply
If you have E5 licenses, you can configure a Data Loss Prevention rule to show a policy tip. I'm not sure if you can specify a rule that would trigger on an email having any attachment. Usually, you are checking for attachments with specific sensitivity labels applied or for sensitive information types.

Check out

You could purchase one license to test your scenarios before upgrading all users.