If you pass resolve_domain=True, then it will try to resolve the domain name to make sure it's valid. This takes longer, of course. You must have the pyDNS modules installed to look up DNS (MX and A) records.

>>> e = Email()
>>> e.to_python(' test@foo.com ')
'test@foo.com'
>>> e.to_python('test')
Traceback (most recent call last):
    ...
Invalid: An email address must contain a single @
>>> e.to_python('test@foobar.com.5')
Traceback (most recent call last):
    ...
Invalid: The domain portion of the email address is invalid (the portion after the @: foobar.com.5)
>>> e.to_python('o*reilly@test.com')
'o*reilly@test.com'
>>> e = Email(resolve_domain=True)
>>> e.resolve_domain
True
>>> e.to_python('doesnotexist@colorstudy.com')
'doesnotexist@colorstudy.com'
>>> e.to_python('test@forums.nyu.edu')
'test@forums.nyu.edu'
>>> e.to_python('test@thisdomaindoesnotexistithinkforsure.com')
Traceback (most recent call last):
    ...
Invalid: The domain of the email address does not exist (the portion after the @: thisdomaindoesnotexistithinkforsure.com)
>>> e = Email(not_empty=False)
>>> e.to_python('')

Messages

badDomain:

The domain portion of the email address is invalid (the portion after the @: %(domain)s)

badType:

The input must be a string (not a %(type)s: %(value)r)

badUsername:

The username portion of the email address is invalid (the portion before the @: %(username)s)

domainDoesNotExist:

The domain of the email address does not exist (the portion after the @: %(domain)s)

empty:

Please enter an email address

noAt:

An email address must contain a single @

noneType:

The input must be a string (not None)

socketError:

An error occured when trying to connect to the server: %(error)s