Ruben Safir: > I'm sorry to bother everyone > > Any clue why this is happening from the cointalk.com domain > I am locked out of the forum :) > > 2021-01-05T03:11:38.999012-05:00 www2 postfix/smtpd[26176]: NOQUEUE: > reject: RCPT from 23-111-188-110.static.hvvc.us[23.111.188.110]: 450 > 4.1.8 <ng...@server.cointalk.com>: Sender address rejected: Domain not > found; from=<ng...@server.cointalk.com> to=<faceb...@mrbrklyn.com> > proto=ESMTP helo=<server.cointalk.com> > www2:~ # grep cointalk /var/log/mail|less > > > www2:~ # dig mx ng...@server.cointalk.com
$ dig mx server.cointalk.com ; <<>> DiG 9.11.25-RedHat-9.11.25-2.fc32 <<>> mx server.cointalk.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 25012 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 Wietse