SPF (Sender Policy Framework)
SPF (Sender Policy Framework) is a DNS TXT record that lists which mail servers are allowed to send email on behalf of your domain.
Receiving servers check SPF to detect spoofing: if mail arrives from a server not in your SPF record, it can be rejected or marked as spam. A correct SPF record is one of the three pillars of email authentication, alongside DKIM and DMARC.
Is your SPF record correct?
Check which servers may send on behalf of your domain and close the gap spoofing slips through. One of the three pillars of mail authentication. Free.
Related terms
DKIM (DomainKeys Identified Mail)DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing email so receivers can verify it really came from your domain and was not altered.DMARCDMARC is a DNS policy that tells receiving servers what to do with email that fails SPF and DKIM checks, and where to send reports about it.MX RecordAn MX (Mail Exchange) record is a DNS record that tells the internet which mail servers are responsible for receiving email for a domain.
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