fatal: open database /etc/aliases.db

Thanks to these guys (http://www.scriptinstallation.in/fatal_database_aliases.html) I was able to solve this with

On a new postfix mail server installation, i got following error on console

Jul 11 19:19:32 freebsd postfix/local[654]: fatal: open database /etc/aliases.db: No such file or directory

The error is because postfix can’t find “/etc/aliases.db”. Problem is fixed with by recreating aliases.db file.

postfix stop
rm -f /etc/aliases.db
newaliases
postfix start