What do these logs mean on my slackware 14.2 server's maillog?

cesarsj · 04-29-2020, 04:47 PM

I didn't find any process called sendmail, and in /etc/rc.d/rc.sendmail it has no execution attribute. What is registering these lines? It's normal? Does it consume processing?

Apr 29 18:30:01 zbx sendmail[20218]: 03TLU1a1020218: from=root, size=381, class=0, nrcpts=1, msgid=<202004292130.03TLU1a1020218@server.local>, relay=root@localhost
Apr 29 18:30:01 zbx sendmail[20218]: 03TLU1a1020218: to=root, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30381, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1]

berndbausch · 04-29-2020, 05:35 PM

root sent an email to root on April 29 at 9:30 pm. This failed because no MTA is listening on this computer.

"sendmail" was only launched to deliver this email. It consumed a few CPU cycles at that moment, but not anymore.

I suppose you have an ill-configured mail server on this system.

cesarsj · 04-30-2020, 05:10 AM

Quote:

Originally Posted by berndbausch

root sent an email to root on April 29 at 9:30 pm. This failed because no MTA is listening on this computer.

"sendmail" was only launched to deliver this email. It consumed a few CPU cycles at that moment, but not anymore.

I suppose you have an ill-configured mail server on this system.

It is the Zabbix server, and it uses another email server of its own. How do I disable these records? Every hour, two sendmail records appear in maillog, and I have not identified any senmail processes being executed.