title: Determine POP/IMAP server from email address
body: <p>Is there a way to determine POP or IMAP server given the email address? I am building an application for non-technical users and I dont really want to bother them with asking their IMAP/POP servers. <a href="http://mail2web.com" rel="nofollow noreferrer">mail2web.com</a> does this, but I am not sure how.</p>