Hello falko, Hope you are doing well, i have deployed the email server successfully, but vacation is not working, i have followed fedora12 postfixadmin base setup howto. mydomain name -> admin.domain.net myhostname -> mail.domain.net i have added vacation user, i have modified vacation.pl script as well, Aug 14 06:01:04 mail postfix/local[24459]: 2CB208C0936: to=<test#[email protected]>, relay=local, delay=0.15, delays=0.04/0.01/0/0.1, dsn=5.1.1, status=bounced (unknown user: "test#admin.domain.net") Aug 14 06:01:05 mail postfix/smtp[24460]: 2CB208C0936: to=<test#[email protected]>, relay=none, delay=0.05, delays=0.04/0/0/0, dsn=5.4.6, status=bounced (mail for autoreply.mail.domain.net loops back to myself)