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I have a complex postfix setup with dovecot authentication, amavis and spamassassin.

The inet_interfaces are set to my IPv4 address, IPv6 address and IPv4 and IPv6 loopback. But I want that the submission service only listen on the public IP addresses and not on localhost addresses. How can it set this?

Using -o inet_interfaces= public ipv4, public ipv6 in master.cf does not work.

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  • Have you tried recreating the submission port, but instead of calling it submission, call it a.valid.ip.addr:587 ? Obviously, with an actual IP there :)
    – NickW
    Jan 5, 2015 at 11:44
  • Did you restart the services? What are the logs telling?
    – sebix
    Jan 5, 2015 at 12:04
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    Now I use "hostname:submission" and in /etc/hosts this name resolvs to my public ipv4 and ipv6 address. Now it works! Thanks!
    – user219962
    Jan 5, 2015 at 12:16
  • Cool, glad you got it going! :)
    – NickW
    Jan 5, 2015 at 14:08

1 Answer 1

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I found out the solution.

First you have to check that in /etc/hosts file, your hostname is mapped to your IPv4 and IPv6 address.

Then you can can use this in /etc/postfix/master.cf:

...
yourhostname:submission   inet  n       -       n       -       -       smtpd
...
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