[CentOS] Mail has quit working

Gordon Messmer
Thu, 23 Aug 2018 20:55:32 -0000

On 08/19/2018 06:21 PM, TE Dukes wrote:
> Another kernel update and things are broken again!
> YEARS with no problems. About tired of messing with this!

Earlier in this thread, you indicated that you saw "warning hostname
localhost does not resolve to address 127.0.0.1" in /var/log/maillog,
and some other logs indicated that postfix was timing out connecting to
its locally hosted domains.? Both of those suggest that you have DNS or
network related problems, and not something resulting from package updates.

You might consider posting /etc/resolv.conf, /etc/hosts,
/etc/sysconfig/network-scripts/ifcfg-<your network interface>, and
/etc/postfix/main.cfg on https://paste.fedoraproject.org/ for review.?
It would also be useful to see the output of "ip addr show", "ip
route
show", and "ip -6 route show".? If the system starts working
suddenly,
as it did earlier, compare the output of those commands when the system
is working to the output when it is not.