Mixmax Custom Domains are a crucial tool for improving email deliverability and making your emails look like they were sent directly by you.

Mixmax's tracking and calendar features utilize web requests to function. Your recipients send and receive data to Mixmax's servers, which lets us track opens and downloads and display your calendar information. The custom domains feature allows you to use your company's domain for this traffic.

When enabled, your recipients will only see links to your domain. It helps improve your message deliverability, as some mail systems consider links to domains other than the sender's a potential sign of spam. It will also help differentiate your messages from those of other Mixmax users. That way, no one else will use the same domain for tracking or calendar purposes.

Mixmax administrators can specify a custom domain to be used across their organization in the following areas:

To set up custom domains in Mixmax, decide which domains you want to use for Mixmax tracking and calendar links. You can choose something simple, like tracking.yourdomain.com and calendar.yourdomain.com. You can also select more obscure names or stick to an existing name scheme you already use. You need to pick new names that are not already in use, and you will also need to choose different domains for calendar links and tracking.

Once you have chosen the domains to use, go to the 'Workspace settings' page in the 'Admin center' and enter your Custom calendar domain and/or Custom tracking domain.

You'll likely need help from your IT department or DNS administrator for this step. Once saved, each setting will instruct you to create a CNAME record that points to a Mixmax domain, which will look like yourcompany.vanity.mixmax.com. You must create a new CNAME record for the tracking and calendar domains (for example, tracking.yourdomain.com and calendar.yourdomain.com) through your DNS provider.

Go to your domain registrar and create a CNAME record for your domain, pointing it to the specified value. The exact steps will depend on your DNS or hosting provider. Again, you'll likely need help from your IT department or DNS administrator. The new records will need to have 'label' or 'host' values of the name you've chosen (like 'tracking' or 'calendar') and 'destination' or 'target' values of the name provided by Mixmax (like 'yourcompany.vanity.mixmax.com'). If you are unsure of the details of your DNS provider, please consult their documentation or related resources for more information on setting up a CNAME record.

It can take anywhere from a few hours to 48 hours for Mixmax to validate that you own the domain you've registered, depending on how quickly your DNS registrar updates your DNS records.

Once we've validated the domains, you'll see a green checkmark next to them in your Settings, and we'll immediately begin using them for all tracking and calendar links.

Mixmax uses its own tracking domains, which are shared with other Mixmax customers and can change at any time. If you want tracked links and open tracking to use a domain that's only yours, set up a custom tracking domain using the steps above.

No. Mixmax sends your emails through your own Gmail or Outlook account, so they still come from your usual email address. Your custom tracking domain only changes the domain used in tracked links, the open-tracking pixel, unsubscribe links, and cloud-hosted attachment downloads.

No. Mixmax doesn't send email from your custom tracking domain, so it only needs the CNAME record from Step 2. SPF, DKIM, and DMARC still matter for the domain you send from. See Optimizing email deliverability for details.