CentOS - Jul 2018 - Mail has quit working

On 24 July 2018 at 08:39, TE Dukes <tdukes at palmettoshopper.com> wrote:
> Checked all logs and the only thing I could find was  in /var/log/maillog :
> warning hostname localhost does not resolve to address 127.0.0.1
>
has your /etc/hosts ?been modified recently?
does it contain a "127.0.0.1 localhost" or equivalent  entry?
B

> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Bernie
> Pannell
> Sent: Monday, July 23, 2018 7:24 PM
> To: CentOS mailing list
> Subject: Re: [CentOS] Mail has quit working
> 
> On 24 July 2018 at 08:39, TE Dukes <tdukes at palmettoshopper.com>
wrote:
> 
> > Checked all logs and the only thing I could find was  in
/var/log/maillog :
> > warning hostname localhost does not resolve to address 127.0.0.1
> >
> 
> has your /etc/hosts ?been modified recently?
> does it contain a "127.0.0.1 localhost" or equivalent  entry?
> B
Hi, thanks!

First line of /etc/hosts: 127.0.0.1 localhost localhost.localdomain localhost4
localhost4.localdomain4 also  a few lines down, ::1 localhost
localhost.localdomain localhost6 localhost6.localdomain6