SPF Checker

What is an SPF-Record?

SPF stands for Sender Policy Framework. It is a DNS TXT record that specifies which IP addresses and/or hostnames are allowed to send emails from a specific domain. SPF records are used to prevent spammers from sending messages with forged From addresses at that domain.

What is an good SPF-Record in general?

v=spf1 a mx ~all

What is an good SPF-Record for Google Workspace?

v=spf1 include:_spf.google.com ~all

What is an good SPF-Record for Microsoft 365?

v=spf1 include:spf.protection.outlook.com -all

Stands for including every A-Tag inside your dns, also subdomains

Stands for including every MX-Tag inside your dns

~all

Stands for softfail, which means that mails outside an included mailserver will be delivered into spam

-all

Stands for hardfail, which means that mails outside an included mailserver will not be delivered