Forcing sendmail to use HELO (vs. EHLO)?

[Scott Garman]

Any sendmail gurus know how to force sendmail to use the HELO method for
all outgoing mail instead of EHLO? 

I've had an open support ticket with MS Exchange support for over two
weeks now. Our RHEL sendmail server can send mail to our Exchange server
fine about 90% of the time, but I get bounces on seemingly random
occasions. The support guy wants me to try this now (even though
Exchange advertises ESMTP capability in its banner).

I have pcap traces on each side of the connection during a bounce if
anyone is curious enough to want them. It looks like Exchange just kills
the connection in the middle of the message body transfer and generates
a bounce instead.

Thanks,

Scott

-- 
Scott Garman
sgarman at iname dot com