RE: [xymon] smtp/smtps tests against postfix generate errors on server

["White, Bruce" <bewhite (at) fellowes.com>]

You can change what Xymon sends during an smtp test by editing the
<install dir>/etc/bb-services file.

    ......Bruce



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ÂBruce White
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-----Original Message-----
From: Xymon User in Richmond [mailto:hobbit (at) epperson.homelinux.net]
Sent: Saturday, November 20, 2010 8:19 PM
To: xymon (at) xymon.com
Subject: Re: [xymon] smtp/smtps tests against postfix generate errors on
server

The test is in netservices.c.  You could try patching in a HELO before
the
MAIL command.  Or check postfix's main.cf for reject_unauth_pipelining
directive.  Not sure what removing it might result in for everything
else.
 The "feature" of logging this for every occurrence appears to have been
introduced in 2.6.

On Sat, November 20, 2010 20:31, Shawn Heisey wrote:
> I have this message over and over in the log on my personal Debian
> mailserver:
>
> improper command pipelining after MAIL from
mail.example.org[ip.ad.dr.es]
>
>
> It started on November 10th, when I installed updates on the machine,
> upgrading postfix from 2.5.5-1.1 to 2.7.1-1~bpo50+1.
>
> I grabbed a sniffer trace, where I found that Xymon is sending, in a
> single packet, a "mail" command followed by "quit".  The server
responds
> with the following because this is a violation of the strict RFC:
>
> 503 5.5.1 Error: send HELO/EHLO first
> 221 2.0.0 Bye
>
> My postfix config has two places where it checks for unauthorized
> pipelining, one of which was not preceded by permit_mynetworks, so I
> fixed that, and it didn't help.
>
> I am running the lenny-backports xymon package, version
> 4.3.0~beta2.dfsg-5~bpo50+1.
>
> Can the test be re-engineered so that it follows proper SMTP protocol
> and waits for a server response between each command?
>
> Thanks,
> Shawn
>
>
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