Last September, we announced new capabilities in Office 365 Message Encryption that enable users to seamlessly collaborate on protected emails with anyone. This release included Do Not Forward an out...
Updated May 11, 2021
Version 11.0
Blog Post
Hi,
We have a user with Office 365 Business Premium + Azure Information Protection Plan 1 and if I start a new email thread using the new ‘Encrypt’ feature in Outlook on the web and the recipient replies the message is automatically decrypted without issue as expected.
If that user looks at the email in their Outlook for Mac client (16.12 (180410)) there is a yellow warning that states ‘Your credentials must be verified before you can access this message’ but hitting ‘Verify Credentials’ doesn't seem to have any effect. No credentials prompt appears.
I see similar behaviour with Do Not Forward. If I remove the Outlook profile and set it up again, I can decrypt that Do Not Forward email but there any subsequent emails have the issue again.
Any ideas? Has anyone else observed this behaviour? Any workaround?
Thanks