SPF validate Tool
Hint: Enter your email, to check and validate your SPF DNS record! (Your email will not be saved)
What is SPF?
SPF (Sender Policy Framework), is an email authentication technique to prevent spammers from sending messages on behalf of your domain.
How dose it work?
The email sender would publish SPF policies to the DNS (Domain Name System), these polices would list which IP address (Internet Protocol Address) are authorized to send an email message on their domain behalf.
When you send an email, the receiving email server would check your domain name SPF record listed on your DNS for an authorized IP(s), and if it matches with the IP address that you sent through then it will pass otherwise it will fail the authentication.