I configured a PIX firewall with one outside public address given by my ISP. Users from the internal network (where both a w2k AD and an Exchange server are) are able to use internet and send e-mail. But still I have problem receiving e-mail from internet. PIX configuration seems to be fine but I was told I need to make sure I have an A MX entry for the PIX on the DNS. Can anybody explain me what it needs to be done on DNS in order to recive e-mail from outside???
Thanks for your help…
