qmail-stmpd receiving mail from ccMail

[kbo]

We've setup a external qmail-1.03 BSDI machine to relay
email in/out to an internal ccMail machine.

Mail from the internet happily flows to the ccMail machine.

However mail from ccMail to qmail-smtpd is never correctly
received and processed.

Is this a known problem? Are there any fixes or patches for it?

Ken Jones
Inter7