Okay, I've done the following
Code:
zmprov md mydomain.local zimbraMailCatchAllAddress @mydomain.local zimbraMailCatchAllCanonicalAddress @provider.com
which has fixed the issue as far as being able to get a mail message that was sent to me by me through the external mail provider. Unfortunately when the mail came in it was marked as being from "steve,steve" in my inbox. I've also noticed that a few other mail messages that I've received or imported (1 received 2 imported from exchange) have shown up with from entries john,steve annette,steve and courtney,steve. None of those three emails were from me and other email has come in just fine... any idea what might be causing that?