Test if an e-mail account works using PHP? [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 11 years ago.

I want to log into 开发者_运维知识库an e-mail account to which I have the username and password and see if the user used the correct password. How does one do that?

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http://us2.php.net/manual/en/book.imap.php