nagios and sendmail log entries (did not issue MAIL/EXPN/VRFY/ETRN)

[Marc Powell]

> -----Original Message-----
> From: nagios-users-admin at lists.sourceforge.net [mailto:nagios-users-
> admin at lists.sourceforge.net] On Behalf Of Andreas Ericsson
> Sent: Wednesday, August 10, 2005 4:04 PM
> To: Marcus Sobchak
> Cc: nagios-users at lists.sourceforge.net
> Subject: Re: [Nagios-users] nagios and sendmail log entries (did not
issue
> MAIL/EXPN/VRFY/ETRN)
> 
> Marcus Sobchak wrote:
> > Hi,
> >
> > nagios generates the follwing maillog entry each time it checks my
> sendmail
> > (8.12.3):
> >
> > Aug 10 21:03:28 walter sm-mta[24243]: j7AJ3SoQ024243:
> > nagios at urps.uni-bielefeld.de [129.70.12.152] did not issue
> > MAIL/EXPN/VRFY/ETRN during connection to MTA
> >

[snip]

> You could do some magic with check_tcp and adding several SEND
strings,
> or you could change your MTA daemon to something that follows the RFC.

I'm curious. How is it that an e-mail server logging the fact that a
connecting client didn't issue SMTP transaction commands against RFC?
Which RFC is this disallowed in or are you generally saying that
Sendmail isn't RFC compliant?

--
Marc


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