I use Postfix/Dovecot for my emails. They work together well. Now I have a server with multiple IP addresses, and I want to host each IP address with a domain for mails. But it seems Postfix and Dovecot are reading their configuration files from /etc/postfix and /etc/dovecot respectively. Should I run multiple instances of Postfix and Dovecot? And how about the mail data?
I recently set up a local Dovecot server at home, using getmail to pull
down mail from various accounts and place them in Dovecot's maildir
tree with the Dovecot 'deliver' program.
System mail, however, output from cron jobs etc, is still handled by
Postfix and placed in a standard mbox mail spool.
Can I just configure Postfix to instead deliver its mail into the same
maildir tree that Dovecot use