I have two SMTP servers listening on ports 2525 and 2526. But I have only 1 public IP address. I'd like to use postfix (already installed on my server) to receive emails only for domain xxx.company.com and domain yyy.company.com, and redirect those emails to server 1 (port 2525) for domain xxx.company.com and server 2 (port 2526) for domain yyy.company.com.
Postfix will not be used to send emails. Just receive.
I tried several postfix configurations but I haven't figured out how to do this properly. For now, I end up with this: In main.cf:
mydomain = company.com
mydestination = xxx.company.com, yyy.company.com
relay_domains = xxx.company.com, yyy.company.com
transport_maps = hash:/etc/postfix/transport
local_recipient_maps =
unknown_local_recipient_reject_code = 550
In transport.cf:
*xxx.company.com 2525:[localhost]
*yyy.company.com 2526:[localhost]
In master.cf, the following line has been uncommented:
local unix - n n - - local
But I still have an "unknown user" error if my maillog file. I would like to be more accurate for local_recipients so I don't let the entire world enter my postfix.
Does anyone have an out-of-the-box example of such kind of configuration ?
Thanks, Jeremy B.
Your main.cf should be
#/etc/postfix/main.cf
mydomain = company.com
mydestination = xxx.company.com, yyy.company.com
relay_domains =
transport_maps = hash:/etc/postfix/transport
local_recipient_maps = hash:/etc/postfix/local_users
also add the following files
#/etc/postfix/local_users
# Here ACCEPT can be anything,postfix doesn't use it.
someuser@xxx.company.com ACCEPT
someuser@yyy.company.com ACCEPT
#/etc/postfix/transport
xxx.company.com smtp:[localhost]:2525
yyy.company.com smtp:[localhost]:2526
# modify localhost, if the server1 and server2 is not on localhost
Hope that helps.