Woohoo! Figured it out. The stupid windows mailserver didn't log anything
useful, so I took one of the messages and used 'nc' to pipe it into qmail.
The message was autogenerate by some .asp file somewhere and had a stray
<lf> in it.
Jay
-----Original Message-----
From: Aaron L. Meehan [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 12, 2000 11:54 AM
To: '[EMAIL PROTECTED]'
Subject: Re: smtp speed limit??
Quoting Austad, Jay ([EMAIL PROTECTED]):
> I'm looking here:
> http://cr.yp.to/docs/smtplf.html
>
> Maybe one of the messages contains an <lf> not preceded by a <cr>. Where
> would this be logged on the qmail box?
Unfortunately, in the stock qmail, nowhere. However, you may start up
your favorite packet capturing software, sniffit or its equivilent,
and see what is going on between the two servers easily enough.
I've never used it, but there is a djb piece of software known as
recordio that you can use to log every smtp command sent or received
by qmail-smtpd.
Again, though, if this is the problem the exchange server should be
logging qmail's smtp response! If there's a stray newline,
qmail-smtpd will spit out a 4xx error code and the URL quoted above.
Aaron