Update SPF Record for Deliverability
In most cases, the CartStack mail sending domain(s) are proficient for a high-deliverability rate, but if you are noticing issues (eg: live emails going to spam folder), you can try adding an SPF record to your web site's DNS settings.
In this example, we'll say that your domain is "website.com". If you don't already have any SPF records for your domain you will add a new one. Here are the details you'll need:
Type:
TXT record
Host: @ or website.com
Value: v=spf1 include:mailgun.org include:m1.cartstack.com ~all
Host: @ or website.com
Value: v=spf1 include:mailgun.org include:m1.cartstack.com ~all
If, however, you already have an SPF record for something else, you will need to update your existing record NOT add a new one. Here is an example of how you would do this:
If your current record looks like this:
v=spf1 include:website.com ~all
v=spf1 include:website.com ~all
Update do this:
v=spf1 include:website.com include:mailgun.org include:m1.cartstack.com ~all