Forum Discussion
Full Mailbox Access & opening another users Maibox
It should still work fine in classic Outlook, but if you have some form of SSO configured, it might be preventing you from getting to the "correct" login screen. The steps involved require you to go back one screen and change the UPN, but if you are getting auto-logged in, this will be a problem.
If you are using the new Outlook client, support for this method is still not rolled out.
I'd also advise you to add the Full Access permissions via PowerShell instead of the EAC, as with PowerShell you can specify the -Automapping:$false switch.
The Method isn't the issue.
Im aware of how to apply automapping.
Automapping isn;t in the picture here as we want to open the mailbox in its own profile using my own credentials.
Thanks
Hello, thanks for replying.
Its not the PowerShell or exchange permissions/access that is the problem. Using a very old version of Outlook (like 2016) still works.
Using classic outlook does not
we are using
Microsoft® Outlook® for Microsoft 365 MSO (Version 2408 Build 16.0.17928.20604) 64-bit
Stopped working for us in February.
SSO is not in the mix.
