I just set up qmail toaster and ran into a similar problem.  I edited 
/var/qmail/supervise/qmail-smtpd/run and put this as the first lines 
after the shell definition:

# Following added by GT:
SIMSCAN_DEBUG=2
export SIMSCAN_DEBUG

QMAILQUEUE="/var/qmail/bin/simscan"
export QMAILQUEUE
# End addition


This allowed me to tail the smtp log (tail -100f 
/var/log/qmail/smtpd/current | tai64nlocal) and see what simscan was 
doing.  This led me to discover that my virus scanner was failing to 
execute (as the permissions were wrong due to an incorrect umask when I 
built the toaster - you will notice the new qmail toaster instructions 
tell you to set your umask - yeah that was me).

It will make your logs grow and rotate quickly - once you have solved 
the problem, take the lines back out and recycle qmail.

Hope this helps.

George Toft, CISSP, MSIS
My IT Department
www.myITaz.com
480-544-1067

Confidential data protection experts for the financial industry.


Eric "Shubes" wrote:
> I've recently installed the qmail toaster (http://www.qmailtoaster.com) 
> on CentOS. I'm in the process of redirecting messages from the old 
> (hosted) server to my new one, and occasionally get the subject message.
> 
> Most messages come through ok, but several have been rejected. The 
> rejected ones originated from various lists (including this one), and 
> don't appear (to me) to be spam. They passed through a tighter 
> spamassassin filter on the old server.
> 
> I'm new to this email server stuff, and don't know where to turn. I've 
> googled the error, and it appears that qmail (or spamassassin or clamav) 
> thinks there's something wrong with them. I've grep'd various logs, and 
> haven't noticed anything indicative. I posted a message on the 
> qmailtoaster list, but haven't heard back (yet), so I thought I'd try 
> here, knowing that there's an abundance of talent here. I'm just looking 
> for pointers.
> 
> TIA
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