[CentOS] Mail has quit working
centos at fullnote.com
centos at fullnote.com
Mon Aug 27 13:31:12 UTC 2018
On 08/27/2018 09:05 AM, TE Dukes wrote:
>> -----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 220.127.116.11
> ;; 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?
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