sendmail log entry 2007-07-19 - By Furnish, Trever G
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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@(protected)
> [mailto:redhat-list-bounces@(protected)] 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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