On Mon, Mar 13, 2017 at 08:14:12PM +0100, Carsten Bormann wrote:
> On 13 Mar 2017, at 18:43, John R Levine <johnl@xxxxxxxxx> wrote:
> > You can complain about how stupid they are or you can upgrade your mail
> > system to use authentication methods that have been IETF standards for a
> > decade and get your mail delivered. Your choice.
>
> The most likely outcome is that local admins will �upgrade" our mail system
> by turning off IPv6. (We have had IPv6 deployed for some 18 years now.)
That's my approach at present:
$ postconf -Mf smtp/unix
smtp unix - - y - - smtp
-o inet_protocols=ipv4
--
Viktor.