Hi everyone :-)

NW6 SP3, BM3.7 SP3 (public IP), Netmail 3.1g (private IP)

I've got only one public IP so mail proxy is my destiny ;-)
Is there any possibility (excluding generic proxy) to connect to my mailbox
from the internet and send an e-mail to the other person on the internet?
Mail client (OutlookExpress) fails with "sender e-mail address was
Receiving mails works fine.
On the BM server ports 110 and 25 are opened. ACL rules allow SMTP any to
any, pop3 any to any.
Even if filters and ACL's are disabled it still doesn't work.
Thanks for any help.