SPF, or Sender Policy Framework, is a record in the Domain Name System (DNS) that specifies which mail servers are authorized to send email on behalf of a domain. Checking your SPF record is important to ensure that your emails are not being spoofed or forged, which can damage your reputation and lead to your emails being blocked by spam filters.
There are a few different ways to check your SPF record. One way is to use a free online tool, such as MXToolbox or DNS Checker. Another way is to use the command line. To check your SPF record using the command line, open a terminal window and type the following command: