smtp/smtps tests against postfix generate errors on server
hobbit at elyograg.org
Sun Nov 21 02:31:32 CET 2010
I have this message over and over in the log on my personal Debian
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
Can the test be re-engineered so that it follows proper SMTP protocol
and waits for a server response between each command?
More information about the Xymon