On Di, Jul 21, 2020 at 15:20:36 +0200, l...@ungleich.ch wrote:
The change:
/etc/postfix/main.cf:
from: inet_protocols = ipv4 (DEFAULT: enable IPv4 only)
to: inet_protocols = all (DEFAULT: enable IPv4, and IPv6 if supported)
I don’t think this is a good idea. You’re right that most (or probably
all) distributions have an activated IPv6 stack. That means you’re
getting at least one fe80 address, even if you could reach nothing
outside your network.
But this means that postfix will try to reach its next hop with IPv6 if
the next hop has IPv4/IPv6 addresses, but this will fail. Of course
Postfix will try again with IPv4, and this will work, but it is an
needlessfailure.
Many greetings,
Stephan
--
| If your life was a horse, you'd have to shoot it. |
