Virtual Alias Domains and Maps
Redirect virtual recipients without hosting local UNIX accounts.
Production note: Back up configuration, run
postfix check, and stage changes before reloading.Configuration
virtual_alias_domains = example.com
virtual_alias_maps = hash:/etc/postfix/virtual
# /etc/postfix/virtual
[email protected] [email protected]
@example.com [email protected]Build map
postmap /etc/postfix/virtual
postmap -q [email protected] hash:/etc/postfix/virtual
postfix reloadCatch-all warning
Catch-all aliases attract invalid-recipient traffic and can worsen backscatter or abuse. Prefer explicit addresses.
Avoid loops
Ensure redirected destinations do not route back to the same virtual alias domain.