So either you need smtp server port listening enabled on host abc.com or there is a firewall rule blocking it, I guess.
On Wed, 23 Dec 2020, 14:21 Amey Abhyankar, <sco1...@gmail.com> wrote: > On Wed, 23 Dec 2020 at 12:50, Vishal Rao <vishal...@gmail.com> wrote: > > > > Do you have mail server port open on abc.com itself and not some > subdomain like smtp.abc.com? > > If I try to telnet on port 25 to abc.com, I get a connection refused > message.[over private/internal IP range] > > > > > On Wed, 23 Dec 2020, 12:33 Amey Abhyankar, <sco1...@gmail.com> wrote: > >> > >> Hello, > >> > >> I am trying to configure sendmail on gitlab 13.x CE [on-prem > >> server/CentOS 7] to send emails to the LDAP based gitlab users. > >> [on-prem/traditional set-up] > >> > >> Sendmail is able to send email to any domains except its own domain. > >> > >> In logs, I am getting a message saying that the connection is refused > >> by domain abc.com & the private IP of Windows based DNS server. > >> The mailing solution for abc.com is taken from Google. > >> We checked for any email in the queue from git...@gitlab.abc.com but > >> no email in blacklist or spam section. > >> > >> mail sender is git...@gitlab.abc.com > >> Reply to is nore...@gitlab.abc.com > >> > >> I tried to add abc.com domain in access file as = Connect:abc.com > RELAY > >> Tried with more R&D but same issue. > >> Not helping. > >> > >> Any ideas how to fix the issue. > >> I did a lot of Google. > >> Those solutions did not work. > >> > >> Regards, > >> Amey. > >> _______________________________________________ > >> plug-mail mailing list > >> plug-mail@plug.org.in > >> http://list.plug.org.in/listinfo/plug-mail > > > > _______________________________________________ > > plug-mail mailing list > > plug-mail@plug.org.in > > http://list.plug.org.in/listinfo/plug-mail > _______________________________________________ > plug-mail mailing list > plug-mail@plug.org.in > http://list.plug.org.in/listinfo/plug-mail >
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