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outlook performance with managed mailboxes.

Last Modified: 2020-05-16
I have several Office 365 E3/E5 email accounts i need to monitor and need access to.  When i give myself permissions to the mailbox through Admin Center, it provisions permissions.  However what happens next is that my outlook then decides to mount the box and download all mail.  I have 10 accounts i have to maintain and it is hurting outlook performance jsut to be able to use even my own account.  Am i assigning permissions wrong ?
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Vasil,  Thank you for the information. I will give this a try when i am back in the office tomorrow.


I got this working for a user account. However i have a question. Not only do i have some generic inboxes (no-reply, sales etc) that i need to manage, i have about 50 end users who often need me to help them find an email or fix a outlook rule etc.  Is it possible to grant permissions to all users  or do i need to do it individually.
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Individually only. And you probably dont need these permissions to be applied all the time, so only add them when the need arises as a best practice.



I meant to ask, is there an automated ps script for this where all i would need to do is edit the mailbox users account and then run it ?

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