Please follow these steps if you want to add a custom tracking domain for GoDaddy domains:
Start off by going to the settings for the email account
Then, click on ‘Use custom tracking domain’
Add a new CNAME for your domain in DNS zone and set it to prox.itrackly.com
Name: inst
Type: CNAME
Value: prox.itrackly.com
Add the new CNAME in the Instantly settings and click on ‘Check Status’
Add it as inst.yoursendingdomain.com in Instantly with yoursendingdomain.com being the domain you added the CNAME record under
If everything is set up correctly you will receive the following notifications below the Check Status button.
CNAME Verified SSL Verified
Not using GoDaddy as a domain registrar? Here are other providers and how to add a CNAME record to each one of them:
If your domain registrar is not shown here please google: (name of your domain registrar) how to add cname record and usually the first page that shows in the search results is the one that shows you how to add a CNAME record. Or you can reach out to the support team of your domain registrar and ask them where the DNS settings are to add a CNAME record to your domain.