RE: sendmail log entry

An entry like that would be generated if something on the local system
connected to the MTA and then disconnected without issuing commands.
This happens, for example, when you have a monitoring system checking
the service by connecting to it, such as nagios.

Regarding why it says localhost.localdomain, that's probably just a
reflection of how you have 127.0.0.1 listed in /etc/hosts.

-----Original Message-----
From: redhat-list-bounces@xxxxxxxxxx
[mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Bill Tangren
Sent: Thursday, July 19, 2007 9:34 AM
To: General Red Hat Linux discussion list
Subject: sendmail log entry

I am running a restricted sendmail relay under RHEL ES 4.
Lately, I have been getting this in the logs:

sendmail[9730]: l6J1H6Cg009730: localhost.localdomain
[127.0.0.1] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA

I've seen this before for outside email addresses, but not
for localhost. Is it possible that I am getting this message
because the email server that is sending this email is
misconfigured and identifying itself as localhost? I can send
mail from this machine with no problems, and AFAIK there are
no problems with most if the email being relayed.

TIA,

Bill Tangren

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