spamc, spamd and spamassassin
Hugo van der Kooij
hvdkooij at vanderkooij.org
Thu Oct 22 09:17:56 IST 2009
On 10/15/09 17:39, Steve Freegard wrote:
> The implementation of the test is so flawed that it trips my own servers
> pipelining checks (e.g. it sends all the SMTP commands without waiting
> for a response - which is illegal if using SMTP (e.g. HELO vs EHLO):
> 220-mta11.safeguardmail.net SMTP Welcome to smtpf #633 (l9EBY0201453145500)
> HELO www.declude.com
> 220 Copyright 2006, 2009 by SnertSoft. All rights reserved.
> MAIL FROM:<webmaster-vir at declude.com>
> 250 Hello declude.com [220.127.116.11] #256 (l9EBY0201453145500)
> RCPT TO:<steve.freegard at fsl.com>
> 250 2.1.0 sender accepted #283 (l9EBY0201453145500)
> 550-5.3.3 pipelining not allowed #643 (l9EBY0201453145500) White list
> Sorry, an error occurred!
I must say the output shown does not look like a pipeline at first
glance. It resembles a normal SMTP session but they have a problem with
multiple line responses.
RFC 5321 indicates that the use of HELO is now deprecated. But even RFC
821 specifies that multiline responses are allowed for each valid command.
Perhaps someone ought to print out those RFCs, roll them up real stiff
and whack these guys over the head with it?
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