Shared mailbox migration to O365

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New Contributor

I am going through the process of migrating shared mailbox from onprem to o365, and its been giving me nothing but trouble.

 

regardless of mailbox permissions ie. direct full access, mail enable sec group

 

before migrating the mailbox the user already has access to it in 2013 world

the following morning after migration to o365, the user has a password prompt when trying to access the shared mailbox

 

webmail access is no problem

profile rebuild always seems to fix it

 

i have plenty of these do, and there is no way i am going hand fix these one by one.

 

client version is outlook 2016 mix of w10 and w7

 

automapping does work, as the user ends up with 2 profiles, the automapped one, and the one that prompts for password..  

 

not sure what strategy to take with this. any ideas..

 

1 Reply
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PS prior to migration it was added in cached mode

 

and most of the time removing the passwords from vault, also fixes it post migration.