Validate SPF DNS records for any domain and review include chains, mechanisms, and all-policy qualifiers to debug deliverability issues. Designed specifically for developers and professionals, this free online networking runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking, no registration required, and an entirely ad-free experience.
What SPF does
SPF tells receiving mail servers which hosts are allowed to send email for your domain.
Common directives
`include`, `ip4`, `ip6`, and `all` are the most frequent directives in production SPF records.
Policy qualifiers
`-all` is strict fail, `~all` is soft fail, and `?all` is neutral for unknown senders.
Operational checks
Review include chains and policy mode before email provider changes or deliverability audits.
Validate SPF policy setup for a domain with a single TXT lookup and parse directives like include, ip4, ip6, and all policy qualifiers.
Only the domain you enter is sent to Google Public DNS for one TXT query. No email content, inbox data, or credentials are transmitted.
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