Postfix

References

• Postfix Configuration Parameters.
• ADDRESS_REWRITING_README — Postfix Address Rewriting
• LOCAL_RECIPIENT_README — Rejecting Unknown Local Recipients with Postfix

Aliases

Add static aliases in default configuration

• Edit /etc/aliases
• Then run newaliases:

newaliases

Uses regexp (dynamic) aliases

Edit file /etc/postfix/main.cf as follows [1]:

alias_maps = regexp:/etc/postfix/aliases-regexp

Then create /etc/postfix/aliases-regexp as follows:

/^tom\..*@domain.com$/     tom@other.com
/^phil\..*@domain.com$/    phil@other.com

Troubleshooting

Debugging aliases

Use postmap:

postmap -q mip@prime.immie.org hash:/etc/aliases regexp:/etc/aliases-regexp
postmap -q mip hash:/etc/aliases regexp:/etc/aliases-regexp