For my latest venture, MyFamilio, I needed to know if a user’s Email address is a Gmail one so that I could show the user his/her contacts from Gmail.
Figuring out if the user is on Gmail is usually easy – the Email ends with @gmail.com. But what happens for all of those Google Apps for Your domain (like my own, which uses the @sandler.co.il domain) ?
Well, you can easily detect that by running a DNS query on the MX record.
" doc_version: "1" last_updated: "2017-06-02" date: 2011-07-17 tags: [Code, dnspython, Gmail, google-apps-for-your-domain, Python] canonical: "https://eran.sandler.co.il/2011/07/17/determine-if-an-email-address-is-gmail-or-hosted-gmail-google-apps-for-your-domain/" --- ## Sitemap - [Home](https://eran.sandler.co.il/) For my latest venture, [MyFamilio][1], I needed to know if a user’s Email address is a Gmail one so that I could show the user his/her contacts from Gmail. Figuring out if the user is on Gmail is usually easy – the Email ends with @gmail.com. But what happens for all of those Google Apps for Your domain (like my own, which uses the @sandler.co.il domain) ? Well, you can easily detect that by running a DNS query on the MX record. I wrote a small function in Python which uses dnspyhon to do just that, determine if an Email address is hosted on Gmail or not. [Check the gist here][2]. [Check the gist here][2]. [1]: http://www.myfamilio.com [2]: https://gist.github.com/1087324