I agree that processes like this should be written in one script. People always get too hung up on the 'page' paradigm and break processes across scripts in a way that just doesn't help anything.
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But that would be sensible and prevent unnecessary effort. This is the Internet, mister! We don't hold with that sort of behavior!

Okay, fair enough.

OP, would you care to post the other scripts this one is referring to?

...well, okay. If we're actually going to try to critique. Um... nothing whatsoever in the script actually attempts to send an email.

That's kinda the root of my earlier comment. The whole...

Hey, he doesn't need to use regular expressions. A hash will do fine.

And... what? You want us to write the rest for you?

Y'know, that sorta looks less like a 'challenge' and more like an actual forum abuse script.