We have an issue that has recently appeared where a mailbox is being mapped twice.
First – We give a user full mailbox access to a shared drive, lets call it Shared(email: Shared@domain.com).
It's then automapped as Shared and appears in their list. This is how it's always behaved (since automapping first appeared.)
They also need to send from the Shared account so we have to add the account in as a separate email account so that the sent items go into the correct Sent items (the shared one).
Now this is where things are suddenly behaving differently. Adding the mail account for shared means it is being mapped a second time to the folder/mailbox list in outlook (2016 if it matters).
Once as Shared and once as shared@domain.com
Both accounts seem to match and have the same mail inside, messages in the outbox appear in both.
Any idea what's suddenly causing this? And what's the best way to fix it?
Only exchange changes we have made recently is changing our certificates to match our new company name and updating them throughout outlook. I don't know if they are related, just giving all the information for clarity's sake.
Best Answer
Did you add the shared mailbox as an additional ACCOUNT, or additional MAILBOX? They are two different methods. If you add it as an additional account, then it shouldn't map automatically.