I run the latest openbsd release for the two hosts concerned, so it
should correspond to opensmtpd version 7.8.
On 09.12.2025 18.26, BetaRays wrote:
Le Tue, Dec 09, 2025 at 05:32:24PM +0100, Stéphane Guedon a écrit :
Hello
When looking at the manual to smtpd.conf, on "action" and "relay"
nothing says the relay host has to be ipv4.
Yet, when writing my conf', it definitely looks like not to be possible
to relay to an ipv6-only host (in my case, I wanted to dedicate a
specific ipv6 address on the relay host).
Is it possible that the relay function only sends mail to ipv4 addresses ?
Thanks for your help and comments.
Hi,
What version of OpenSMTPD are you using? The portable source tree had a
typo in it that caused IPv6 relaying to fail when using IPv6 addresses in src.
See https://github.com/OpenSMTPD/OpenSMTPD/pull/1275/files
This should be fixed in version 7.7.0p0.
