Originally Posted by rdhw
I think you have misunderstood. There is no reason why you should not post your e-mails through the SMTP server of your dial-up ISP, and indeed it is the right thing to do.
Don't some ISP's block emails with reply to addy's outside their domain though?
If you're running 2000/XP you could just use the built in SMTP service in IIS, just set your outgoing SMTP server as 127.0.0.1
Oh and look on the web to find out how to secure Windows SMTP