I am in the process of migrating my mail server qmail to postfix. But I am struggling to figure out how to implement some functionality using postfix. I have postfix up and running with virtual users and domains via sql and everything is working.
I host about 20 domains but I only have 3 that are really different. I have the three different domains setup but I am not sure how to create the aliased domains.
I have found lots of documentation on how to alias to individual mailboxes but not entire domains.
I want to alias everything that comes to domain1.com and domain2.com go to the same user on domain5.com.
So email@example.com is aliased to firstname.lastname@example.org and email@example.com is aliased to firstname.lastname@example.org. Except there are dozens of accounts like this and I don't want to have to do it individually.
I appreciate any advice anyone can provide.
OK, I figured it out.
Is a valid alias map.