An SPF record is a DNS record of type TXT stored on the DNS server responsible for your domain. Your domain will already have some DNS records: type A records are needed to operate a website and type MX records are required to operate email. This website will display your current SPF record and also tell you if it is valid - just enter your domain where it says \\"Domain name:\\", https://www.kitterman.com/spf/validate.html If your SPF record is valid that only means it follows the standards for creating an SPF record, is doesn't necessarily mean that it's correct. To be correct the SPF record must list all the mail-servers that send out emails from your domain. A valid but incorrect SPF record can cause more problems that not having an SPF record at all. Windows, MacOS and Linux all have built-in utilities for displaying DNS records. Here's how to find your SPF record in Windows:- Open a Command Prompt by searching or running: cmd A black \\"terminal\\" window opens where you type a command, press enter, Windows shows a reply, you type the next command and so on. The previous commands/replies gradually scroll up the screen until they eventually disappear off the top. (40 years ago, before the Macintosh arrived, this was how all computers worked.) Enter the command: nslookup Enter the command: set type=txt Enter your domain name. The computer will then display any domain level TXT records. Your SPF record is the one that begins with \\"v=spf1\\" This doesn't tell you if the SPF record is valid or correct, just if you have one and what it is. Creating the correct, valid SPF record for your domain can be complicated. We're happy to help you with this if you're struggling.