How to set your custom tracking domain in GMass

I’ve written extensively about the importance of having a dedicated tracking domain for your GMass account. Now, you can set your tracking domain all on your own after you’ve implemented the DNS setup for it.

Set your dedicated tracking domain in GMass

Compose a new message in Gmail, put in the To field, and put the tracking domain you created in the Subject. Then hit the main GMass buttonDo not hit the Send button.

In this example, my G Suite email address is, and I’m setting as my tracking domain. I must hit the GMass button, not the Send button.

Note: For instant approval, your tracking domain must contain the domain of your G Suite email address. Meaning, if you are, your tracking domain should be something like If your email address domain and your tracking domain don’t match, your request will be accepted but will be held for manual approval.



10 Replies to “How to set your custom tracking domain in GMass”

  1. Tania

    Hi Ajay, this may be a bit of a noob question but would there be a risk that our tracking domain could be used by anyone else? I guess my concern is that IF someone could then this could be severely harmful to our businesses domain.

  2. Ajay Goel

    This isn't possible, because we would have to manually approve the assignment of a tracking domain to an account, when the domain of the tracking domain doesn't match the domain of the Google Apps account.

  3. John

    Hi created new CNAME & got approved by GMASS that I have custom tracking domain but all my emails are still ending up in spam folders when sending. Please help

  4. John Sevigny

    It’s a bit irritating that after paying for GMass I have to do this to make it actually work. It really should have been mentioned up front. And “one simple step” is plainly a lie. This is my first moth using gmass and will likely be my last.

    • Maya Quijada

      Hi John,

      I’m sorry you feel that way. We try to make it as simple as possible (and even offer to set it up for you if you don’t feel technically able) – we developed this feature to ensure the deliverability our users prefer. If you want me to set up your CNAME record for you, email us at

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