I figured it out! What I did was install "Argosoft Mail Server" and it gave me a POP3 / SMTP / Web Server all in one and I used "[username]@" (and change SMTP to localhost in PHP.INI) for sending messages. The username is what I had to create in Arogosoft's Server software. The great thing about the software (other than it was freeware), was that it allowed me to use the web to log in, if I wanted to. Prior to this, I tried several other mail servers and they didn't appear to work (Servor Errors, mostly... anyone who can add more insights, please don't hesitate!). I believe the reason for them not working is because this is based off an account system and a server, as opposed to just a server. What I'd like to try in the near future, is buy their Advanced Version and try out a mailing list by creating several accounts. This would work great at testing out newsletters to visitors and see what comes back. Thanks Argosoft! Any insights would be appreciated, though.