SPF Record
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An SPF (Sender Policy Framework) record is a [[txt-record|TXT record]] that specifies which mail servers are authorized to send email on behalf of a domain. SPF helps prevent email spoofing by allowing receiving servers to verify the sender's legitimacy.
Example
The SPF record 'v=spf1 include:_spf.google.com ~all' means only Google's servers are authorized to send email for your domain.
Referenced in Guides
DNS Configuration