i'm having a very strange problem - there's a client running outlook 2003 with 2 email accounts. they're configured exactly the same (except username/password), they both have "authentication-on-send" enabled.
the weird thing: one account can send, the other won't. i checked the logs and found out that one account is sending EHLO (which let's him send), the other account is just sending HELO (which won't relay).
i couldn't find out the reason for that HELO/EHLO difference :/
i tried anything - deleting/re-creating that account, didnt work. even on a different machine, same problem.
the lan runs over a AVM Ken proxyserver. i've also tried deleting/re-creating the account - no success.
any ideas what could be wrong?