My SMTP Connector Settings are wrong

[kimble]

I'm haveing a hard time figuring out the correct settings for my outgoing smtp connector. I've just upgraded to a router that can port-forward and added a static IP. My old setting don't work anymore and I can't get the new ones right. Here's what I done:

Old Settings. I had my incoming DSL go into NIC 1 and then I had all my Clients off NIC 2 through a hub. I used ISA server as my firewall/ISP connection wizard. I added an SMTP connector to exchange for my smart smtp host. All worked well.

Now I have my DSL comes into a Router with firewall that connects to my hub. Off the hub I have all my clients and my server. It port forwards 25, 110, and 80. I can still recieve mail because I am currently using forwarding with a pop3 connector until i get my mx record switched over. Yet I can't get my outgoing smtp connector to send anything.

Now that I have a static IP am I able to use my own server as a smtp server? Or do I still have to use the ISP mail server to send out my mail? If the latter is the case what may have changed in my setup that no longer lets my smtp connector to work and what might i try to get it to work again?

Thanks a bunch.