On Thu, Feb 19, 2026 at 11:37:14 +0100, Marco Moock wrote: > On 18.02.2026 14:30 Greg Wooledge wrote: > > > # ping 2001:41b8:202:deb:216:36ff:fe40:4002 > > PING > > 2001:41b8:202:deb:216:36ff:fe40:4002(2001:41b8:202:deb:216:36ff:fe40:4002) > > 56 data bytes ^C > > Currently it works for me. Please use traceroute and check whether that > is a local issue or at the remote side or during transit.
I don't think IPv6 works from this host at all. I tried a few other IPv6 addresses, and couldn't ping any of them. If I'm correct then disabling IPv6 in Postfix (which I've already done) seems like the best solution to that. # traceroute 2001:41b8:202:deb:216:36ff:fe40:4002 traceroute to 2001:41b8:202:deb:216:36ff:fe40:4002 (2001:41b8:202:deb:216:36ff:fe40:4002), 30 hops max, 80 byte packets 1 * * * 2 * * * 3 * * * 4 * * * 5 * * * 6 * * * 7 * * * 8 * * * 9 * * * 10 * * * [...]
