Network
SPF Record Generator
Build an SPF record from your sending sources.
v=spf1 include:_spf.google.com -all DNS lookups used: 1 of 10.
Calculated in your browser. Free, nothing leaves the page.
About this tool
Free spf record generator tool. Build an SPF record from your sending sources. No signup, nothing uploaded.
Frequently asked questions
Is anything sent to a server?
No for the calculators; server-backed lookups say so in the cost note.
Does it support IPv6?
Where the tool name implies it; IPv4 and IPv6 differ per tool.
What do I do with the result?
Use it when planning subnets, DNS or firewall rules.
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