An SPF (Sender Policy Framework) record is a text record associated with the domain, which acts as an identifier to specify the mail servers that are allowed to send email on behalf of their domain. The implementation of SPF allows the receiving mail server to check if the email is from an approved source.
To learn about the correct SPF syntax and creation, please review the following link:
SPF Record Syntax: http://www.openspf.org/SPF_Record_Syntax
If you would like to see if a domain currently has a SPF record and if we see any errors with a domain, please use our SPF tool found in your Agari PRO portal.
For information on how to make changes to your TXT record, please review the following article: https://agari.zendesk.com/entries/28301516-How-do-I-make-changes-to-my-TXT-record-