postfix rewrite destination of mails from specific server group Hi I have smtp server on a local network and all other local machines send emails through this one (mastersmtp.lo.cal 10.10.10.10). I need to rewrite all TO/destination address from test1.lo.cal (10.10.10.12) and abrakadabra.lo.cal (10.10.10.222) servers, which relay to my mastersmtp.lo.cal. I think this should be done on mastersmtp.lo.cal. it uses postfix as mail software. Maybe someone knows any most "default"/simple way of doing this? Thank you.

used <

added to main.cf:


# for redirection some emails
header_checks = pcre:/etc/postfix/header_checks

content of: /etc/postfix/header_checks


/^From: (.*@test1.lo.cal)/ REDIRECT newDestination@awesome.com
/^Received: (.*10.10.10.12)/ REDIRECT newDestination@awesome.com
/^From: (.*@abrakadabra.lo.cal)/ REDIRECT newDestination@awesome.com
/^Received: (.*10.10.10.222)/ REDIRECT newDestination@awesome.com

reload restart and so on :) as always :)


postmap -q - pcre:/etc/postfix/header_checks < /etc/postfix/header_check
systemctl reload postfix