961 votesJeremy Lutze commented
I agree def needed.
We have a staff with 15+ shared mailboxes they cannot even open MS Outlook without it having issues from Crashing Outlook, Out-of-Memory Errors or not allowed to send/receive emails.
They advised disabling "MAPI" under mail features which would affect everyone from not seeing the mailbox, using distribution groups or powershell feature.
In a way I am amazed MS Outlook never fixed have multiple shared mailboxes open as this bug has been around since Outlook 2007
(Advised by Microsoft too many connections)Jeremy Lutze supported this idea ·