Email spoofing is a way to send an email from one address and have it appear to be from a different address. Tools like Mailchimp, Hubspot, and CATS use this to send emails on your behalf. However, scammers can also use spoofing to trick email recipients. That’s why a spoofed email can be a red flag to an email service, making it more likely to go to the spam folder, even if it’s for a legitimate business purpose.
CATS provides you with the ability to generate several unique values that you can put into the DKIM settings of your DNS (Domain Name Server — like GoDaddy, Wix, SquareSpace, etc) that will authenticate that CATS has your permission to send emails from your domain. To find out more about these settings and how they work, read our article on email spoofing & DKIM. To learn how to set these up for CATS, visit our Custom Email Domains setup guide in the Knowledge Base.