What is SPF?
Posted Feb 21, 2021 6 min read
What is SPF?

What is SPF? Sender Policy Framework is the standard that pioneered the concept of domain-based email authentication. SPF prevents spoofing by enabling domain owners to whitelist IP addresses of servers that are authorized to send email on the domain's behalf. If a mail server with an IP address that's not on the list tries to send email [...]

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