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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 trackingdomain@gmass.co 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 ajay@wordzen.com, and I’m setting track.wordzen.com 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 john@abcwidgets.com, your tracking domain should be something like link.abcwidgets.com. If your email address domain and your tracking domain don’t match, your request will be accepted but will be held for manual approval.

To clear your tracking domain settings

If you want to clear your custom tracking domain so that your mailings revert to the system shared tracking domain, do the same as above except put the word “clear” (without the quotes) in the Subject line. That will clear the tracking domain for your account, and if your account is a G Suite account, it will also clear the tracking domain for any other GMass accounts of the same domain name.


  1. 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.

    1. Hi Ajay….i cant get my godaddy domain name added to my g suite gmass account. I signed up for g suite 14 day trial.

      Godaddy domain pro-art.online Used the DNS with go daddy CNAME etc..but it will not add to my gmass account.

      Any ideas? i am so frustrated,

      Jason Higgins

      1. Hi Jason,

        Please contact our support team directly as we would need to request for screenshots of your DNS entry in your GoDaddy DNS settings. Please see gmass.co/g/support

  2. 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. 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. 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.

    1. 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, Please contact our support team through http://gmass.co/g/support

      1. Hello Maya, this is a different John but I’m having the same problem. Issues with the cname record. Would it be possible to set mine up for me? John

  5. 3D cart set up my tracking domain CNAME: email.emerges.com.

    I sent it to you all as instructed and you approved it.

    Now what do I do? Do I have to embed the CNAME into each email that I compose or how does it work?

  6. Hi
    I have purchased a Gmass for one of my business emails set up through my website. I am curious if a bundle package exists for other email accounts under the same domain? We have a total of 5 accounts. Does gmail offer any type of package deal. Even for 3 of us that need it the most. Thank you

    1. Hi Colleen,

      GMass subscriptions are per Gmail or G Suite account, and GMass doesn’t care what alias addresses are connected to a single account. So if you have all of your aliases on the various domains set up in a single Gmail account, and that single Gmail account is subscribed to GMass, then you are able to send from all of those different alias addresses with a single GMass subscription.

      If, however, those aliases are spread across multiple Gmail accounts, then you would need a subscription for each of those Gmail accounts.

      1. One small suggestion, I recently set up 2 trackings for 2 different aliases on my single gmail account. The notification and the email notification both make reference to it being successful on my mainemail@gmail.com but make no reference to the domain that was added or the corresponding domain email aliases I am hoping to attach it to. Perhaps the notification of success could be more explicit by adding this information to the notification.

        1. Hi Ben,

          Thank you for your recommendation. I’ll be sure to pass it along to Ajay to see if it’s something we can fit in our roadmap ahead.

  7. Адрес не найден
    Сообщение не доставлено, так как адрес trackdomain@gmass.co не найден или не принимает входящие письма.

    Что делать? Может адрес изменился?

  8. Guys! Does this tool still work ? I have set up the SMTP server with sendgrid, created a Cname and pointed it to >> x.gmtrack.net , however the emails that i send as a test to my other emal adress are landing in the spam folder. What am i missing ?

    1. There are numerous factors that can affect this. Reasons that an email platform filter your emails as spam varies from one platform to another. The best way to check what the reason is provided is to test sending to a Gmail account of your own. If the email ends up in spam, see if a reason is provided, like in the example below:

      For more troubleshooting steps please see https://www.gmass.co/blog/spam-folder-email-blocking-issue-determine-cause/

  9. I have a standard gmail address, and I sent up my CNAME on my domain, but when I try to send the email, I keep getting this error notice: “Uh oh, something went wrong. Here is the detailed error: We couldn’t find a CNAME entry for email.angiekillianrealestate.com pointing to x.gmtrack.net. If you need help resolving this, please contact support at support@gmass.zendesk.com.”

    1. Hi Angie,

      Please contact our support team at https://www.gmass.co/blog/how-to-get-support-from-the-gmass-team/

  10. I have Subscribed for two emails with gmass. Now to create a tracking domain can i make two CNAME in the same domain & would it work perfect. or i have to purchase two domain for my two emails.

    1. Hi Fayaz,

      No, you can use the same domain for both subscriptions. You can have each one to use different hostnames.

      For example, you can use something like track.yourdomain.com and mailtrack.yourdomain.com both pointing to x.gmtrack.net so you won’t have to purchase another domain.

  11. I have a Gmail account that has two “from” addresses: the Gmail account itself (call it: me@domain1.com) and an email alias on a different domain (call it: friend@domain2.com).

    When I try to set up a custom tracking domain for domain1.com, everything works perfectly.

    However, when I change the default from address to friend@domain2.com and try to set a different custom tracking domain for domain2.com the new tracking domain gets set for domain1.com instead.

    Is there a way to set a custom tracking domain for domain2.com when the domain on the email address is only an alias, rather than the Gmail account itself?


    1. Hi Jesse,

      Unfortunately, no, since the GMass subscription is connected to the main account (not the alias) so any changes such as adding a custom tracking domain would apply to the main account and any aliases under it.

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  13. Hi Marvin,

    Where can I get the template, please? I just got confirmation that a dedicated server has been allocated for my tracking: do you still advise me to include links in my emails, or to remove them, to reduce the flagging?

    1. Hi Nadine,

      If you’ve recently added your tracking domain, you would want to send your email outreach that includes your tracking link first to just the previously blocked email addresses.

  14. Hi there,

    I am just looking for clarification. my company website is reliablecapital.ca

    can i register the domain name reliablecapital.CO if its available and use that for all my email marketing efforts. As in create new email address for this domain also and get a new gmass account.

    Will that be the same as getting separate tracking domain. Or will I still need to do this CNAME stuff.


  15. Hi Guys, I am having a problem in sending a message to trackmydomain@gmass.co to enable me to add my custom tracking domain to my account.

    Do i need to verify my TXT code with my Domain Host for my G-suite eMail before this works or what am i doing wrong?

    I will appreciate some help here,

        1. Hi Elbeen,

          You can send a test email with links using anchor text to an email address you have access to.

          Google This link will be tracked and include your tracking domain
          http://www.google.com This link will not be tracked.

          This is because GMass only tracks links with anchor texts that are not the actual URL of the link.

  16. I add GMass to my gmail account yesterday.. GMass asks me to send a test message to 10 GMass staffs.. I sent them a test message before I set my dedicated tracking domain in GMass.. Will that affect email deliverability? or it’s all good?

    1. Hi Akhil,

      No, sending your test campaign prior to having a custom tracking domain will not affect your deliverability but adding a custom tracking domain will surely help with deliverability and help prevent your emails from being blocked.

  17. Hey Marvin,

    Now, I read everything I need to know to make a dns record. Imma summarize it real quick. Could you please confirm if I am right?
    1. I have to buy a domain (name of the domain doesn’t matter)
    2. I have to set a CNAME record e.g “view” (without quotes of course^^)
    3. I am sending an E-Mail with trackingdomain@gmass.co in the to field and my
    tracking domain in the Subject field.
    4. As soon as I did this it is always my own tracking domain used unless I don’t send a mail to
    trackingdomain@gmass.com with the subject “clear” right?

    Let’s say I bought the domain abccompany1. I set a CName record for my domain lets say “view”
    Here is my question: If I want to apply this domain to my gmass account ( I am having a regular gmail Mailadress)
    Do I then have to write “view.gmail.com” in the subject or “view.abccompany1.net”
    Or is both possible and with the only difference that with the first option my tracking domain gets instantly approved? How long does it take to get tracking domains approved if it doesnt contain the domain of my gmail Mailadress?

    If I set up everything properly will my Mails no longer be sent in the spam folder or is it just very likely that they dont end up in spam folders but depending on content (e.g links) still possible?

    Thank you very much! Highly appreciate any help! 😉

    1. Hi Lenard,

      The steps you’ve listed are good, however, please make sure the TO address is trackingdomain@gmass.CO (not .com). Please note that any address in the TO field that ends with @gmass.co is actually set up as a command when used in tandem with the GMass button. So in this case, it will not send an email to trackingdomain@gmass.co but perform an action to check if there’s a valid tracking domain in the URL found in the subject line.

      You would need to use view.abccompany1.net since that’s where the CNAME entry you created from step #2.

      Tracking domains (when it’s not the same domain as the email address you’re setting it to) usually takes 24-48 hours as we manually check and approve these. However, if you’re using G Suite and the tracking domain and your email address’ domain matches, these are automatically approved.

      Though we can’t guarantee 100% that it would help get your emails into the Inbox since there are other factors involved and how strict your recipients’ email servers have set up thir email filters, it would eliminate any blocks and will definitely help with deliverability.

  18. Hey,

    I am an internet music producer from Canada that sells digital music files to upcoming artists.

    I have setup an account for my online business with Gmail and Gmass, utilizing SendGrid- when I test my emails through sendgrid they always go to spam folders. With just plain Gmail they do not. How can I fix this so I can utilize the mass emailing capabilities? Or is there any other services you provide to help businesses with this? I just want to beable to effectively hit my possible clients inbox or promotional tab box but I aim to send 100-200 emails/day.

    Thanks and appreciate any help!

    1. Hi Mark,

      If you’re sending just 100-200 emails per day, we highly suggest using Gmail servers instead of SMTP.

    1. Hi Kai,

      Upon checking, we’re not showing any emails sent from GMass under the email address you’ve used to post this comment. Kindly contact our support team so we can assist you directly (gmass.co/g/support).

  19. i keep getting a link in my mails that i didnt send pls how do i remove it i noticed it when i sent my test mail out things like “mail merge gmass” ” where do you think the mail came from” etc

    1. Hi Kevin,

      We’re not showing any campaigns or commands from the email address you used to submit your comment. Could you contact our Support Team (gmass.co/g/support) so we can assist you directly?

    1. Hi Rich,

      No, you can set up a custom tracking domain for Gmail accounts as well through the same process. As long as you have a domain where the CNAME entry is added into its DNS records, you can set it to your account regardless if it’s a free Gmail or G Suite account.

  20. It Is’nt clear at all exactly what one needs to enter into the DNS Records…

    I have Host name and destination.. and don’t know what to put for each…

    Quite frustrating…!

    1. Hi Richard,

      Your host can be any alphanumeric string. This will serve as the subdomain for your tracking domain. For example, if you put track as the host, it will create your tracking domain as track.yourdomain.com. The value should be set as x.gmtrack.net

  21. Hi Ajay,

    I have two domains linked to my gsuite account,,, one primary and one secondary. Can I set tracking domains for both?

    1. Hi Azeem,

      Upon checking, this is because the address you had in your subject line did not match the CNAME entry you had in your DNS records. We’ve replied to your email with a screenshot for your reference.

  22. By having my own dedicated tracking domain would this help with spam triggers?

    Also I send an email to set this up but it comes up with an error message

    General Exception We couldn’t find a CNAME entry for my domain name which is apparently pointing to x.gmtrack.net. How do I resolve this ?

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