> -----Original Message-----
> From: CentOS [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of centos---
> via CentOS
> Sent: Monday, August 27, 2018 9:31 AM
> To: centos@xxxxxxxxxx
> Subject: Re: Mail has quit working
>
>
>
> On 08/27/2018 09:05 AM, TE Dukes wrote:
> >
> >> -----Original Message-----
> >> From: CentOS [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of Richard
> >> Sent: Monday, August 27, 2018 7:58 AM
> >> To: CentOS mailing list
> >> Subject: Re: Mail has quit working
> >>
> >>> Date: Monday, August 27, 2018 07:42:48 -0400
> >>> From: TE Dukes <tdukes@xxxxxxxxxxxxxxxxxxx>
> >>>
> >>>> From: CentOS [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of
> >>>> Richard Sent: Monday, August 27, 2018 7:29 AM
> >>>
> >>>>
> >>>> Since the localhost4 approach worked, commend out the ipv6
> >>>> localhost entries in your /etc/hosts file, then try:
> >>>>
> >>> IP6 is commented out
> >>>
> >>>> dig @localhost localhost a
> >>>
> >>> That works
> >>>>
> >>>> again. If that works try:
> >>>>
> >>>> telnet localhost 143
> >>>
> >>> This also works
> >>>>
> >>>> once again. If those work, it would seem that your ipv6 is messed
> >>>> up and your system is trying it first and not falling back to ipv4.
> >>>>
> >>>> Regarding your nameserver list in /etc/resolv.conf. If you have a
> >>>> working 127.0.0.1 nameserver you generally don't include external
> >>>> nameservers in that list. So, if non-ipv6 things seem to work, I'd
> >>>> remove the two non-127 nameservers from that list.
> >>>>
> >>> Removed the two nameservers. Still can't access mail. Getting
> >>> connection to storage server failed on the roundcube login page.
> >>>>
> >>
> >> That you can now successfully get to "localhost" is good progress.
> >> Seems you want to stay away from ipv6 networking issues unless/until
> >> you resolve whatever that issue is.
> >>
> >> Roundcube is, potentially, a totally separate issue. I don't use it,
> >> so can only suggest minimal debugging ideas.
> >>
> >> What is the hostname that you use to get to your roundcube instance?
> >> Can you resolve that:
> >>
> >> dig <hostname> a
> >>
> >> If you get an answer, is the ipnumber correct?
> >>
> >
> > ; <<>> DiG 9.9.4-RedHat-9.9.4-61.el7 <<>> mail.palmettodomains.com a
> > ;; global options: +cmd
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40652
> > ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 3
> >
> > ;; OPT PSEUDOSECTION:
> > ; EDNS: version: 0, flags:; udp: 4096
> > ;; QUESTION SECTION:
> > ;mail.palmettodomains.com. IN A
> >
> > ;; ANSWER SECTION:
> > mail.palmettodomains.com. 86400 IN A 192.169.1.110
> >
> > ;; AUTHORITY SECTION:
> > palmettodomains.com. 86400 IN NS
> dns1.palmettodomains.com.
> >
> > ;; ADDITIONAL SECTION:
> > dns1.palmettodomains.com. 86400 IN A 192.168.1.110
> > dns1.palmettodomains.com. 86400 IN AAAA aaaa:bbbb::110
> >
> > ;; Query time: 0 msec
> > ;; SERVER: 127.0.0.1#53(127.0.0.1)
> > ;; WHEN: Mon Aug 27 09:01:48 EDT 2018
> > ;; MSG SIZE rcvd: 132
> >
> >> Note, if the hostname for your roundcube instance is one of the ipv6
> >> entries in your /etc/hosts file, I'd remove that - and either put in
> >> an ipv4 entry or put an entry for it in your dns.
> >>
> >
> > Thanks again! I still think it's a mail issue. I can't get mail using
> > usermin either.
> >
> > Think I'm going to remove the TLS stuff from postfix main.cf that I
added
> > yesterday and retry.
>
> If I missed this further up thread my apologies - is SELinux enabled and
> are there any relevant exceptions being logged?
Pretty sure SELinux is turned off unless it got turned on without my
knowledge through an updtate/upgrade.
I removed the TLS lines from main.cf I added last night and remotely did a
reboot from here at work.
Mail is again working!! I am skeptical to mark this thread solved as I
thought it was solved back in July.
I think, removing my ISP's DNS servers from resolve.conf was the fix, could
be removing IPV6 from etc/hosts. Might put it back in just to see.
Again, many, many thanks!!
I really want to thank everyone for their help and patience!!
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