Why Do I Have to Add Commerce7 to the SPF DNS Record on My Domain?

You will want to check with your email provider or IT tech/department on if you have an existing SPF DNS record setup for your domain.
If so, you will need to add Commerce7 to the record to enable email delivery from the Commerce7 Platform.
It is also recommended to setup an SPF record if you don’t have one. You can talk to your IT provider about this.
 
Add to your existing SPF DNS record the following:
include:_spf.commerce7.com. (Ensure the underscore prefixes _spf.commerce7.com)
 
If your record looked like this:
v=spf1 a mx ptr ~all
 
It would look like this after the update:
v=spf1 a mx ptr include:_spf.commerce7.com ~all