Bug#860317: upgrade to latest stretch version breaks

[Andreas Metzler]

On 2017-04-19 "Brent S. Elmer Ph.D." <webe3vt at aim.com> wrote:
> On Wed, 2017-04-19 at 18:45 +0200, Andreas Metzler wrote:
>> On 2017-04-17 "Brent S. Elmer Ph.D." <webe3vt at aim.com> wrote:
>> [...]
>>> paniclog and mainlog contains this:
>>> 2017-04-17 14:30:26 IPv6 socket creation failed: Address family not
>>> supported by protocol

>> This looks like 610918, i.e. having changed Debian's default default
>> setup to disable IPv6 without adapting exim4 configuration
>> accordingly.

>> Are you able to manually start a daemon instance?
>> update-exim4.conf && exim4 -bd -d

>> cu Andreas

> No, here is the output.

> # update-exim4.conf && exim4 -bd -d
[...]
> originator: uid=0 gid=0 login=root name=root
>  3468 listening on 127.0.0.1 port 25
>  3468 LOG: MAIN
>  3468   IPv6 socket creation failed: Address family not supported by
> protocol
>  3468 LOG: PANIC DIE
>  3468   IPv6 socket creation failed: Address family not supported by
> protocol
>  3468 search_tidyup called
>  3468 >>>>>>>>>>>>>>>> Exim pid=3468 terminating with rc=1


Ok, suspicion confirmed. Run dpkg-reconfigure exim4-config and drop ::1
from the listening interfaces.

cu Andreas
-- 
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'