Bug#860317: upgrade to latest stretch version breaks

[Brent S. Elmer Ph.D.]

On Thu, 2017-04-20 at 17:20 +0200, Andreas Metzler wrote:
> 
> 
> 
> Ok, suspicion confirmed. Run dpkg-reconfigure exim4-config and drop
> ::1
> from the listening interfaces.
> 
> cu Andreas

Yes, that fixed it.

Thanks