Custom Domains For Tracking And Calendars

Mixmax Custom Domains are an important tool in improving your email deliverability and in making sure your emails look more like they were sent directly by you.

Mixmax tracking and calendar features make use of normal web requests to work - your recipients send and receive data to Mixmax’s servers so that we can track opens, downloads, and show your calendar information. The custom domains feature allows you to use your company’s own domain for this traffic. When enabled, your recipients will only see links that point to your domain. This will help improve your message deliverability, as some mail systems think links to domains other than the sender might be a sign of spam. This will also help separate your messages from other users of Mixmax -- no one else will be using 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:

  • Click tracking: when your recipients click a tracked link, they are very briefly brought to a URL with your custom tracking domain, and then redirected to the link destination.
  • Tracking pixel: when you send an email with open tracking enabled, Mixmax embeds an invisible tracking pixel in the bottom of the email. This will use your custom tracking domain.
  • Unsubscribe linksUnsubscribe links in your sequence messages will use your custom tracking domain.
  • Downloading a cloud-hosted attachment: when you send your recipient a tracked attachment and they download it from your email, a new tab briefly opens, from which they download their attachment. This tab will have your custom tracking domain.
  • Booking an event using Meeting Templates: when you set up a Meeting Template or use the Availability enhancement, your custom calendar domain will be used.  

Step 1: Select and enter your custom domains

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

Once you have chosen the domains to use, go to the Admin settings page. Click the Workspace tab in the top menu.  Here, enter your Custom calendar domain and/or Custom tracking domain

Step 2: Create a CNAME record based on the value we provide

For this step, you'll likely need help from your IT department or DNS administrator. Once saved, each setting will tell you to create a CNAME record that points to a Mixmax domain that will look something like (the first part will be different for everyone). You will need to create a new CNAME record for both the tracking and calendar domains.  This process happens outside of the Mixmax user interface with your DNS provider.

Go to your domain registrar, and create a CNAME record for your domain pointing to that value. The exact steps to do this will depend on your DNS or hosting service 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 ‘’). If you are unsure of the details for your DNS provider, please consult their documentation or related resources for more information on how to set up a CNAME record. 

Step 3: Wait for your custom domain to be validated

It can take up to a few hours for Mixmax to validate that you own the domain you’ve registered. It depends 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 to use it for all tracking and calendar links.

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