I've been working on an application that will automatically detect your mail server (i.e. imap.gmail.com ) from your email address - this is working with most domain mailservers - (i.e. mail.domain.com, imap.domain.com), but I'm at the point where I need to start looking for the possibilities for mail servers that aren't associated with the domain name - so I'm looking at the godaddy's and 1and1.com's of the world. I haven't been able to find a website with a list or table of the most popular mailservers for custom domains.
I'm looking for a table with the name of a website & the mail server.
For example: Godaddy.com - imap.secureserver.net OR pop.secureserver.net