For just one of our 25 mailboxes the server-side sync (now Dynamics 365 for Outlook Sync) cannot be configured well. Incoming, outgoing and appointments are all failing in the test. Both the mailbox and Exchange for this user are configured the same as all other (successful configured) users. There is no alert logged with an error, warning or message, strange....
Does anybody have a suggestion?
Thanks a lot!
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