DMARC record generator

Generate a DMARC record with a guided wizard — set policy, coverage, alignment and reporting, then copy it to your DNS.

Free · No signup · Runs in your browser

DMARC / configureoptionsfig.

Policy (p)

Subdomain policy (sp)

Coverage % (pct)

Aggregate reports (rua)optionalForensic reports (ruf)optional

SPF alignment (aspf)

DKIM alignment (adkim)

DMARC / recordoutputfig.

DMARC TXT record

v=DMARC1; p=none; aspf=r; adkim=r

Host / name_dmarc

TypeTXT

TipMonitor first, then tighten

About DMARC

Roll it out safely

Start at p=none

Monitor first. Watch reports to confirm your real mail passes before enforcing.

Ramp with pct

Apply your policy to a percentage of mail (e.g. pct=25) to phase enforcement in gradually.

Always set rua

An rua address gives you the aggregate reports you need to tune authentication.

FAQ4 entries

DMARC Generator — FAQ

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Add it as a TXT record at _dmarc.yourdomain.com with the generated value.

Begin with p=none to monitor. Once reports show legitimate mail passing SPF/DKIM alignment, move to quarantine, then reject.

rua receives aggregate (summary) reports; ruf receives forensic (per-message) reports. Most teams only need rua.

Relaxed (the default) allows subdomains to align, which suits most setups. Strict requires an exact domain match.

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