mike,
I am on a freebsd 6.1 machine with directadmin, works with exim for mail.
here is a logfile where it went right, same size, so that is not the problem.
> EHLO localhost
250-xxx.xxx.com Hello xxx.xxx.com [xx.xxx.xxx.xx]
250-SIZE 20971520
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP
LM: SMTP Pipelining Detected
LM: AUTH LOGIN Detected
> AUTH LOGIN
334 xxxxxxxxxxx
> xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
334 xxxxxxxxxxxxxxx
> xxxxxxxxxxxxxxxxxxx
235 Authentication succeeded
> NOOP
250 OK
> MAIL FROM: <bounce@xxx.com>
> RCPT TO: <xxx@xxx.nl>
250 OK
250 Accepted
> DATA
354 Enter message, ending with "." on a line by itself
> SENT DATA
250 OK id=xxxxxxxxxxxxxxx
> MAIL FROM: <bounce@xxxx.com>
> RCPT TO: <xxxxx@xxxxxxxxxx.nl>
250 OK
250 Accepted
> DATA
354 Enter message, ending with "." on a line by itself
> SENT DATA
250 OK id=xxxxxxxxxxx
> QUIT
221 xxx.xxx.com closing connection