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Free SPF + DMARC Generator
Build copy-paste SPF and DMARC TXT records from your sending IPs, includes and policy choices — then verify them with the Email Deliverability Checker.
Domain & SPF mechanisms
DMARC policy
SPF TXT record
Host / name: @ (or your mail-from domain) · Type: TXT
Publish exactly one SPF TXT per name. Keep under 10 DNS lookups (each include/a/mx/redirect counts).
DMARC TXT record
Host / name: _dmarc.yourdomain.com · Type: TXT
Start with p=none to collect rua reports, then move to quarantine/reject. Verify with the Email Deliverability Checker.
Next step
After DNS updates, confirm SPF/DMARC (and DKIM) with the Email Deliverability Checker, and inspect live Authentication-Results in the Email Header Analyzer.