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Free email authentication tool
SPF Raw Generator
Compose a precise SPF policy from mechanisms, networks, includes, and an all policy.
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Generator Wizard
Raw Generator
Domain
Additional include domains
Optional, separated by spaces
IPv4 addresses / CIDRs
IPv6 addresses / CIDRs
Domain mechanisms
a
mx
Policy for all other senders
Soft fail (~all) — transition
Hard fail (-all) — enforce
Neutral (?all) — observe
Generate SPF record
DNS changes can affect legitimate delivery. Verify every sender and stage enforcement policies before publishing.