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
Encrypted messages are sent from company A who has an O365 tenant with OMEv2 enabled to company B who has an O365 tenant.. Users at Company B are running Outlook 2016 Version 1805 (Build 9330.2124 Click-to-Run). Most users can decrypt and read encrypted messages from Company A without issues but two users ran into issues opening encrypted messages from Company A.. When they attempt to open an encrypted message they receive the following: "The logged in users could not be authenticated. Please check your credentials or try signing out and signing back in". They appear to be logged in with there Azure AD account but cannot decrypt and read the encrypted messages from Company A. I tried having one user "Add Account" and "Sign In" but it did not resolve the issue. Is this a bug. How can I troubleshoot?