Hi all, I installed NAV for gateways on my isa server. It accepts incoming mail from external users and send outgoing mail fine. I created a server publishing rule for my external clients to connect to the internal mail server (smtp,pop,imap). They can receive there mail through pop, imap collection when they dial-up, but they are not able to send mail from an external connection. How can i fix this problem? I think NAV and the smtp server publishing rule clash. Regards, Lohan