Free tool

Free DMARC record checker

Use this DMARC checker to confirm a domain has a DMARC record and see what policy it enforces: none, quarantine, or reject.

This checks DMARC policy for one domain. For a real launch verdict, run every domain, inbox, and tracking domain through the full QA pass.

Runs live in your browser via public DNS. Nothing is stored.

How to read the result

A missing DMARC record is a launch blocker. If the record exists, the policy tag p= tells you what receivers do with failing mail. p=none only monitors, p=quarantine sends failures to spam, and p=reject blocks them.

For a new cold email domain, p=none is a common starting point while reports come in, but it is not the whole launch decision. OutboundQA checks DMARC alongside SPF, DKIM, inbox setup, tracking SSL, blacklist status, and the full sender checklist across the workspace.

What this check does not catch

A passing DMARC policy lookup is useful, but it is not launch signoff. Cold email campaigns still fail when adjacent records, tracking domains, or inbox-level settings are broken.

SPF lookup limits

DKIM selector setup

MX readiness

tracking-domain SSL

blacklist status

sending-domain age

Setup guides for this check

Read the setup notes behind this result, then verify the neighboring records before launch.

DMARC for cold email

Policies, alignment, rua reports, and the Gmail and Yahoo requirement that made DMARC mandatory.

SPF for cold email

The exactly-one-record rule, the 10 DNS lookup limit, and the SPF mistakes that block a launch.

DKIM for cold email

Selectors, public keys in DNS, and DKIM setup for Google Workspace and Microsoft 365.

Google and Yahoo bulk sender requirements

SPF, DKIM, DMARC, one-click unsubscribe, and the spam-rate thresholds bulk senders must meet.

Need to check a full outbound workspace?

OutboundQA checks every domain, inbox, and tracking domain in the workspace, then gives you a shareable report with a Ready, Needs Fix, or Do Not Launch verdict.

Cold email launch checks to run next

Use this result as one checkpoint in the launch flow. Then verify the neighboring records and run the combined domain check before the outbound launch goes live.

SPF Checker

Look up a domain's SPF record and count its DNS lookups against the limit of 10.

DKIM Checker

Look up a domain's DKIM selector and confirm the public key exists.

Auth Checker

Run SPF, DKIM, and DMARC together for a sending domain before launch.

MX Checker

Look up a domain's MX records and detect the mail provider.

Blacklist Checker

Check a domain and sampled mail server IPs against domain and email blocklists.

Reputation Checker

Check observable cold email reputation risks across age, blacklist, authentication, MX, and HTTPS signals.

Deliverability Checker

Check observable cold email infrastructure readiness across MX, SPF, DKIM, DMARC, blacklist, age, tracking-domain, and SMTP egress identity signals.

Domain Checker

Run MX, SPF, and DMARC in one pass for a quick readiness verdict on a sending domain.

Sample Launch QA Report

See the report founders, teams, and agencies can share after the full QA pass.

Email Deliverability Tool

See how one-off checks turn into pre-launch QA for full cold email workspaces.

Questions

DMARC is a DNS TXT record at _dmarc.yourdomain that tells receivers what to do with mail that fails SPF and DKIM, and where to send reports. Google and Yahoo require it for bulk senders.

p=none is monitor-only. DMARC reports come in but nothing is enforced. It is a safe starting point, but for cold email you usually want to move to p=quarantine once your reports look clean.

Effectively yes. Google and Yahoo bulk-sender rules expect SPF, DKIM, and DMARC. Missing DMARC is one of the most common pre-launch blockers OutboundQA catches.