How do I identify a webmail service from an email address?

If I have an email address, such as doesnotexist@gmail.开发者_如何转开发com I can identify that it belongs to the gmail webmail service from the gmail.com domain name. There are also googlemail.com addresses which belong to the same service.

Is there a known list of domains belonging to popular email services?

E.g.

• Hotmail (hotmail.com, live.com..)
• Gmail (gmail.com, googlemail.com..)
• Yahoo (yahoo.com..)

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urlblacklist.com has a 'webmail' category that lists over 400 webmail domains. You can download is here and the list is in under bigblacklist.tar.gz\blacklists\webmail\domains.

Its more targeted towards preventing access to those services though. For example it has:

• 'login.live.com' but not 'live.com'
• 'gmail.com' but not 'googlemail.com'

Hopefully its a good starting point though.