Ok, after saying that all those messages didn't put a space between MAIL
FROM: and the <>, I'm seeing in EHLO mode the commands are a bit different.
I recently turned on the SIZE limit in SMTP, which means JAMES acknowledges
with an EHLO and a 250-SIZE line.  Remote servers are noticing this, so
they're sending the complementary SIZE parameter in the MAIL FROM.  This
means they send the following:

MAIL FROM:<username@domain> SIZE=2148

Where 2148 is the number of bytes of the message.  Note there is now no
space between "...FROM:" and "<username...".  Incidentally, this size is
sent so as while it gives a series of RCPT TO commands, our server can see
if any of those users have a quota that this message would exceed, and then
reject receiving the message for that user, using a 452 reply code.

Anyway, James is failing on this MAIL FROM format, so the size limitation
code isn't 100% just yet.  I'm not sure quite how many emails we're
rejecting at this point, but I'm either going to patch this or turn off the
size limit setting on my server soon.

Serge Knystautas
Loki Technologies - Unstoppable Websites
http://www.lokitech.com/


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