I understand how a MX relay works and how to implement it in postfix, but what I am looking to do is create a clone of all the mailboxes on our system to another system. So is one server setup like a MX backup relay and then there is some switch or option that I don't know or do I just setup 'virtual_alias_maps' in main.cf on both systems to save a copy of the email and forward it to the other? Will postfix be smart enough not to get stuck in a loop?
Can I just use: #in /etc/postfix/main.cf virtual_alias_maps = hash:/etc/postfix/domain_copy.conf #in /etc/postfix/domain_copy.conf @mydomain.edu @host1.mydomain.edu @host2.mydomain.edu Thanks, Paul Richards
