What email server should I use for sending emails with php()? (related)
I use easyphp (php, apache, windows).
Got to agree with User4283 - operating a secure email server can often be harder than people think... and if someone else has already done that work and made it available to you then you might as well take advantage of that. Use the ISP mail service if that's available.
Failing that, you might take a look at hMailServer - not used it myself but I have heard good things about it. But keep in mind that using the ISP mail server will nearly always be a better choice.
Try the free Google apps if you need to send less then 500 emails/day.
Otherwise I highly recommend the free Mailenable email server.