My rimu host hosts a number of domains, including oroup.com, openrelay.com, cadabraco.com and drugmaps.com. I want to be able to send and receive email to those domains, but (at least for now) I don’t really want to set up dovecot locally and actually deal with mail. So the ideal thing is just to forward your mail to another email address. Postfix is a little daunting at first, but the key instructions turn out to be quite simple.
1 /etc/postfix/main.cf: 2 virtual_alias_domains = example.com ...other hosted domains... 3 virtual_alias_maps = hash:/etc/postfix/virtual 4 5 /etc/postfix/virtual: 6 postmaster@example.com postmaster 7 joe@example.com joe@somewhere 8 jane@example.com jane@somewhere-else 9 # Uncomment entry below to implement a catch-all address 10 # @example.com jim@yet-another-site 11 ...virtual aliases for more domains...
Presto, instant email!