> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Pete Biggs
> Sent: Friday, August 24, 2018 12:08 PM
> To: centos at centos.org
> Subject: Re: [CentOS] Mail has quit working
>
>
> > > OK. There are a couple of things:
> > >
> > > Aug 23 21:47:18 ts130 postfix/smtpd[3750]: warning: hostname
localhost> > > does not resolve to address 127.0.0.1
> > > Aug 23 21:47:18 ts130 postfix/smtpd[3750]: connect from
> > > unknown[127.0.0.1]
> > >
> > > That needs to be fixed. What does the entry for 127.0.0.1 look
like in
> > > /etc/hosts? Have you also defined ::1 to be localhost in
/etc/hosts?
> >
> > 127.0.0.1 localhost localhost.localdomain localhost4
> > localhost4.localdomain4
> > 192.168.1.110 ts130.palmettodomains.com ts130
> > 192.168.1.110 mail.palmettodomains.com mail
> >
> > # ::1 localhost localhost.localdomain localhost6
> > localhost6.localdomain6
> > 192.168.1.102 edukes1.palmettodomains.com edukes1
> > 192.168.1.105 hp8200.palmettodomains.com hp8200
>
> In the file /etc/nsswitch.conf there is a line that starts hosts: what
> does that say?
#
# /etc/nsswitch.conf
#
# An example Name Service Switch config file. This file should be
# sorted with the most-used services at the beginning.
#
# The entry '[NOTFOUND=return]' means that the search for an
# entry should stop if the search in the previous entry turned
# up nothing. Note that if the search failed due to some other reason
# (like no NIS server responding) then the search continues with the
# next entry.
#
# Valid entries include:
#
# nisplus Use NIS+ (NIS version 3)
# nis Use NIS (NIS version 2), also called YP
# dns Use DNS (Domain Name Service)
# files Use the local files
# db Use the local database (.db) files
# compat Use NIS on compat mode
# hesiod Use Hesiod for user lookups
# [NOTFOUND=return] Stop searching if not found so far
#
# To use db, put the "db" in front of "files" for entries
you want to be
# looked up first in the databases
#
# Example:
#passwd: db files nisplus nis
#shadow: db files nisplus nis
#group: db files nisplus nis
passwd: files sss
shadow: files sss
group: files sss
#initgroups: files
#hosts: db files nisplus nis dns
hosts: dns files myhostname
# Example - obey only what nisplus tells us...
#services: nisplus [NOTFOUND=return] files
#networks: nisplus [NOTFOUND=return] files
#protocols: nisplus [NOTFOUND=return] files
#rpc: nisplus [NOTFOUND=return] files
#ethers: nisplus [NOTFOUND=return] files
#netmasks: nisplus [NOTFOUND=return] files
bootparams: nisplus [NOTFOUND=return] files
ethers: files
netmasks: files
networks: files
protocols: files
rpc: files
services: files sss
netgroup: files sss
publickey: nisplus
automount: files
aliases: files nisplus
>
> >
> > >
> > >
> > > Aug 23 21:47:21 ts130 dovecot: imap-login: Login:
user=<tdukes>,
> > > method=PLAIN, rip=::1, lip=::1, mpid=3754, secured,
> > > session=<9W1yjiR08AAAAAAAAAAAAAAAAAAAAAAB>
> > >
> > > So you are connecting over TCPv6 from roundcube to dovecot? Is
that
> > > what you want?
> >
> > I have IPV6 disabled (I think).
>
> Well it's certainly trying to connect via v6 - that's what the ::1
on
> that line is.
>
> >
> > > What is the IMAP hostname in the roundcube configuration?
> > >
> > >
> > $config['default_host'] = 'localhost';
> >
> I think part of the problem is that 'localhost' is being
interpreted as
> the IPv6 loopback device ::1 and not the v4 127.0.0.1 - it may be that
> roundcube has got a wrong mailhost stored. Try running the following
> SQL command on your roundcube database:
>
> mysql --user=rc -p roundcubemail -e "select username,mail_host from
> users;"
>
> It will prompt for the password. (Obviously use a different user if
> it's not 'rc' and a different databasename if it's not
'roundcubemail'
> - they are the defaults and are defined in the roundcube config file.)
>
> It will come back with a list of the users defined and the mailhost it
> will attempt to connect to for that user.
>
> P.
I seem to have forgotten the password I used. Have tried everything. I may
have to re-install roundcube.
TIA