Am 21.06.2025 um 03:34 schrieb Viktor Dukhovni via Postfix-users:
Don't include loopback IP addresses in the inet_interfaces list of the "input" instance, which will accept mail only on the public IP addresses.
This of course is the solution. I added loopback addresses that are not needed without thinking “just in case”. But the public ip can also be contacted from localhost, so there really is no need.
Assign both instances explicit distinct $myhostname values.
That you have already mentionted in the multiple instances guide, and so i did.
But i started rethinking the whole setup. And it does not end with removing localhost ip from the public instance. What is the idea behind the complete construction? To prevent spam, virusses, ... from being delivered. And how much spam might come from the null client instance where only local programs may send?
So i will change local transport from relay to lmtp. Thank you for your help. KR QNo _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
