Skip to content

Embed URL

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Check if an Email address is Gmail or Google Apps for your domain
import sys
import re
import dns.resolver # Requires dnspython
email_host_regex = re.compile(".*@(.*)$")
gmail_servers_regex = re.compile("(.google.com.|.googlemail.com.)$", re.IGNORECASE)
def is_gmail(email):
""" Returns True if the supplied Email address is a @gmail.com Email or is a Google Apps for your domain - hosted Gmail address
Checks are performed by checking the DNS MX records """
m = email_host_regex.findall(email)
if m and len(m) > 0:
host = m[0]
if host and host != '':
host = host.lower()
if host == "gmail.com":
return True
else:
answers = dns.resolver.query(host, 'MX')
for rdata in answers:
m = gmail_servers_regex.findall(str(rdata.exchange))
if m and len(m) > 0:
return True
return False
print is_gmail("xxx@gmail.com")
@pcreytens

You should change line 6 to: gmail_servers_regex = re.compile("(.google.com.|.googlemail.com.|.psmtp.com.)$", re.IGNORECASE)
Some Google Apps domains use Postini.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Something went wrong with that request. Please try again.