I have the following situation:
My domain email domain is abc.com. I've created a new domain 123.com and changed the mx records to point to my email servers at abc.com.
I have the following mailbox abc.com for which I've created an alias with 123.com so feedback now is received email as email@example.com and firstname.lastname@example.org
The problem is that email@example.com is monitored by a group of users and firstname.lastname@example.org needs to be monitored by a different team.
I was thinking of using Transport Rules in Exchange? But I don't know if I can filter by SMTP alias?