SPF (Sender Policy Framework)
A DNS TXT record that lists the IP addresses and hosts authorized to send email for a domain, helping receivers detect forged sender addresses.
Why it matters for email security
Understanding spf (sender policy framework) helps you build signup flows that resist fake accounts, disposable inboxes and automated abuse. VeriShield Edge operationalizes this signal as part of its transparent 0-100 fraud score.
Related concepts
Explore the full glossary or the domain directory to see these signals applied to real domains.