I do not have any issues with IPv6. It works for me. Ubuntu ====== opensmtpd 6.0.3p1-1ubuntu0.2
smtpd.conf lines: listen on 0.0.0.0 port 25 listen on ::0 port 25 $ netstat -lnt | grep ':25' tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN tcp6 0 0 :::25 :::* LISTEN OpenBSD ======= version: OpenSMTPD 6.7.0 smtpd.conf lines: listen on all tls pki example.pki On Wed, 22 Jul 2020 16:34:25 +0200 Harald Dunkel <harald.dun...@aixigo.com> wrote: > Hi folks, > > I've got a problem with IPv6 support for opensmtpd 6.7.1p1 on > Debian: Apparently opensmtpd seems to ignore IPv6 after a reboot. > > My smtpd.conf says > > : > xname = "mailhost.example.com" > pki $xname cert "/etc/mail/ssl/mailhost.example.com.cert" > pki $xname key "/etc/mail/ssl/mailhost.example.com.key" > > listen on lo tls pki $xname > listen on eth0 tls pki $xname > : > > lsof -p shows that smtpd is listening only on the IPv4 address on > eth0. The IPv6 addresses bound to eth0 (link-local and global) are > ignored. > > If I *restart* smtpd, then it is listening on IPv6 as well, up to > the next prefix change propagated via router advertisement. The > IPv6 address with the new prefix is ignored. When the old prefix > expires, then opensmtpd is back to IPv4-only. I have to restart > it again. > > Can anybody reproduce this? > > > Every helpful comment is highly appreciated. > > Regards > Harri > -- with best regards, Slavik Svyrydiuk