The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

  • My badges

  • Twitter Updates

  • My Flickr Stream

  • Pages

  • All categories

  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 2,519 other followers

Check if a domain is services by GMail for Business (former Google Mail for your domain)

Posted by jpluimers on 2018/06/15

Google can service mail for a domain. Alphabet has renamed this service over time:

Anyway: at the time of writing it is at

If you send mail to such a domain and the user doesn’t exist, you get a confusing error message like this:

<<< 550 5.1.1 [^] j191si981824wmd.134 - gsmtp

So I wanted to test if a domain is being services by gmail and found this StackExchange question:

Basically you can test it in two ways:

dig mx 86399 IN MX 20 86399 IN MX 30 86399 IN MX 10 86399 IN MX 40 86399 IN MX 50





Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: