How to find the email server for an email address

[ellismatt]

I'm stuck!
I need a script which can take an email address and find the pop server and appropriate port for it.

So far I've tried splitting the email to get the domain then using getmxrr(), but fsockopen() rarely works with the addresses this returns.

any ideas?

[feldon23]

There is no standard/documented way to do this. Maybe you can dig around spam circles and find a list of mail hosts to match against.