I’m running Apache and php (WinLamp) on my Windows 2000 machine and for mailing I’m just using my isp’s smtp server.
All I did was edit my php.ini file
[mail function]
; For Win32 only.
SMTP = smtp.yourisp.com
; For Win32 only.
sendmail_from = [email protected]
After restarting Apache you should be able to use the php mail funciton.
Wether this is secure or not is another question 🙂