mail name: my_domain.com
IP-addresses to listen on for incoming SNMP connection: (the VPS)
local domains: mail;my_domain.com
domains to relay mail for: (none)
machines to relay mail for: (none)
keep DNS-queries minimal: no
delivery method for local mail: mbox format in /var/mail
split configuration file into small files: no
root and postmaster mail recipient: root