Erik Logtenberg:
>
> > If your system has no useful IPv6 connectivity, disable IPv6 in Postfix.
> >
> > http://www.postfix.org/inet_protocols
>
> The issue is that other people with broken IPv6 connectivity have
> trouble delivering mail to me, because my mailservers have many
> different IP addresses, both IPv4 and IPv6. Due to the default of a
> maximum of 5 IP addresses being tried before giving up, combined with
> the fact that IPv6 apparently has precedence over IPv4, no one with
> broken IPv6 can deliver mail to me when I have >= 5 IPv6 addresses
> configured.
>
> Thank you for your tip nevertheless, if everyone would follow it, this
> problem wouldn't exist.
Sites with broken IPv6 connectivity should not enable IPv6 on
their systems.
Wietse
