[CentOS] Mail has quit working

[TE Dukes]

> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Richard
> Sent: Monday, August 27, 2018 7:58 AM
> To: CentOS mailing list
> Subject: Re: [CentOS] Mail has quit working
> 
> 
> 
> > Date: Monday, August 27, 2018 07:42:48 -0400
> > From: TE Dukes <tdukes at palmettoshopper.com>
> >
> >> From: CentOS [mailto:centos-bounces at centos.org] 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.