Hello all, I have been using Ubuntu 8.04 + postfix as internal mail server. The server is behind router, and since it is being used as internal server only, I do not have forwarded any ports from router to server. Now, we have a web portal (which is hosted somewhere else, out of my network), which needs to send emails to users on internal server. Is there any way that I can allow mails from web portal only to be received by the said server by 'smtpd_recipient_restrictions=' or 'mynetworks=' or similar? If required I shall forward required ports to the server, but since till now server was not open to world, users do not have strong passwords. Thanks in advance. Dipesh