Postfix
Configuring Aliases
After adding the alias to /etc/postfix/virtual run the following
postmap /etc/postfix/virtual postfix reload postmap -q person@company.com hash:/etc/postfix/virtual
Add the following lines to /etc/postfix/main.cf
virtual_alias_domains = yourdomain.com virtual_alias_maps = hash:/etc/postfix/virtual
Configuring a server's Fully Qualified Domain Name (FQDN)
This is one of the few operations that actually requires a linux reboot.
create reverse DNS entry /bin/hostname mail.yoursite.com emacs /etc/hosts postconf -e 'myhostname = mail.yoursite.com' reboot
