SPF Record Check
You can use this tool to check and validate the SPF record of any domain. Simply enter your mail domain in the box above to begin.
What is SPF?
SPF, or the Sender Policy Framework, is designed to detect forged sender addresses during the delivery of email. SPF allows the receiving mail server to check during mail delivery that an email claiming to come from a specific domain is submitted by an IP address authorized by that domain's administrators.
The list of authorized sending hosts and IP addresses for a domain is published in DNS TXT type records for that domain. Sender Policy Framework is defined in RFC 7208