Mail Security and catch all account
We are planning to implement Email Security on our domain but we have a question.
We have a specific mailbox on our 365 Exchange that acts as a "catch-all" account. So it receives email from any address that does not exist on our domain ([email protected] gets delivered to catcha[email protected] for example, when the mailbox xyz does not exist).
How would mail security handle this, since we have to add mailboxes to be managed to the console?
Would those emails still be delivered? The rules that cause this behaviour are on the exchange server which would be behind Mail Security.