This article covers the SPF and DKIM authentication processes for CartStack and how they are managed in Valimail. While only one of the two authentication methods is required for an email to pass DMARC, our recommendation is to configure both whenever possible.

To setup DKIM for your CarStack emails, you will need to have a CartStack Pro account.

If you are not currently on a Pro plan, you can reach out to [email protected] for information on how to upgrade.

CarStack Pro users can enable their Custom Domain feature. This will allow your emails to look like they come directly from your domain rather than m1.cartstack.com. This set-up will require you to update the site's DKIM records.

You can also find the instructions on how to set up DKIM and SPF for CartStack, here and here.

You can find more detailed information on how to add a DKIM key in Valimail, here:

Once you establish that CartStack is an authorized sender for your domain, you will need to add the service in your Enabled Senders.

You will find more detailed information on how to add a service for your domain in Valimail, here:

Note: We encourage you to use the comment section for any useful information about your sending service, such as the name of the service owner, change request ticket numbers, etc.