Return True if value looks like an email address.

def is_email_simple(value):
        """Return True if value looks like an email address."""
        # An @ must be in the middle of the value.
        if '@' not in value or value.startswith('@') or value.endswith('@'):
            return False
        try:
            p1, p2 = value.split('@')
        except ValueError:
            # value contains more than one @.
            return False
        # Dot must be in p2 (e.g. example.com)
        if '.' not in p2 or p2.startswith('.'):
            return False
        return True