EMAIL HEALTH, WITHOUT THE GUESSWORK
Good email
starts with a
healthy domain.
Check your email setup. Find what needs fixing. Keep an eye on the changes that can put your next send at risk.
Free domain check · No signup required
See how monitoring works ↘A clearer path
to healthier email.
Your records are in place.
Check one sender’s alignment.
Review the sending service before changing your DMARC policy.
CHECK. FIX. KEEP WATCH.
Less digging.
More knowing what to do.
A passing check today is a starting point. Keep the records, sending sources and changes in one place.
Get your baseline
Start with your domain. See your authentication and mail routing, with a clear explanation of each finding.
Make the right fix
Understand which sender or record needs attention. Use guided next steps to update your setup with confidence.
Catch the next change
Add monitoring for DNS history, DMARC reports and alerts. Your first monitored domain is free.
FROM A CHECK TO A CLEAR PICTURE
Your email setup.
Connected, at last.
Know who’s sending
as your domain.
Read DMARC reports, investigate unfamiliar sources, and review legitimate senders before moving to a stronger policy.
See what changed.
Track DNS records and health history. Get alerts by email, with Slack and webhooks on supported paid plans.
Build a monitoring routine →Follow a real message.
Inspect message headers and authentication. Connect reputation signals to investigate what a DNS check alone cannot tell you.
Test a message →A USEFUL PLACE TO START
Small tools.
Clear answers.
Email health check
Start with the whole picture.
02 ↗DMARC checker
Find your policy and reporting gaps.
03 ↗SPF checker
Trace senders and DNS lookup limits.
04 ↗DKIM checker
Inspect your published signing keys.
05 ↗MX lookup
See where incoming mail is routed.
06 ↗Header analyzer
Understand a real message’s results.
FOR TEAMS & AGENCIES
One domain.
Or your whole portfolio.
Bring client domains into a shared monitoring routine. Keep separate histories, give teammates access, and share a health page when someone asks how things look.
Start monitoring free ↗Separate domains. One clear overview.
Pricing
Start with one domain. Grow from there.
One monitored domain is free. Choose a paid plan for more domains, deeper monitoring and team workflows.
$4/mo
$4 billed monthly
7-day free trial · Cancel anytime
- 2 domains monitored
- Enforcement guidance & infrastructure monitoring
- Infrastructure monitoring & 90-day history
- 3 email alerts per domain
- Bulk import & public health pages
$19/mo
$19 billed monthly
7-day free trial · Cancel anytime
- 20 domains monitored
- DMARC Analytics, infrastructure & 1-year history
- Enforcement readiness & reputation monitoring
- Campaign testing, Slack & webhook alerts
- API & MCP access
$79/mo
$79 billed monthly
7-day free trial · Cancel anytime
- 120 domains monitored
- 5 team members & 2-year history
- 5 active API keys
- Everything in Pro
$399/mo
$399 billed monthly
7-day free trial · Cancel anytime
- 1,000 domains monitored
- 25 team members & 20 active API keys
- Portfolio-scale monitoring & alert routing
- Priority support
- Everything in Agency
$0/mo
Free forever · No card required
- 1 domain monitored
- Daily checkup, grading & essential fixes
- DMARC Analytics & 30-day history
- 1 email alert destination
- Bulk import & public health page
The fine print, in plain English
- What's unlimited on every plan: free health checks, bulk-import attempts, and public health-page views. No caps, no fine-print asterisks beyond stopping abuse.
- What's limited: monitored domains, history, team seats, API keys, and alert destinations according to your plan. If you reach it, paid integrations and automation pause after a downgrade, but we keep their configuration and history so they resume when you upgrade again.
- Our promise: the limits your plan has today will never be reduced. Any future change can only be an increase.
THE EMAIL HEALTH LIBRARY
Find the answer.
Take the next step.
AUTHENTICATION
A record passes. A message fails. What now?
Investigate SPF, DKIM and DMARC with specific checks and worked examples.
Explore the playbooks →DNS & ROUTING
Make sense of the records behind delivery.
Follow the path from authoritative DNS to the receiving mail server.
Explore the playbooks →OPERATIONS
Build a routine that catches the next issue.
Practical runbooks for launches, migrations, client onboarding and incidents.
Explore the playbooks →A FEW GOOD QUESTIONS
Before you
run your check.
What does an email health check actually check?+
The free check looks at your domain’s published email records, including SPF, DKIM, DMARC and MX, and explains the findings. Monitoring adds history and alerts so you can spot changes after the first check.
Can I check my domain without signing up?+
Yes. Our free DNS checkers, record generators, header analyzer and bounce analyzer work without an account. Create a free account when you want to monitor one domain over time.
Will this guarantee my emails reach the inbox?+
No. Authentication is one part of delivery. Mailbox providers also consider reputation, message content, engagement and recipient preferences. HealthCheck Email helps you investigate measurable problems; the receiving provider makes the placement decision.
Does HealthCheck Email change my DNS?+
You stay in control of your DNS. Use the findings and copy-ready records to make changes at your DNS provider, then verify the results. Your sending provider supplies account-specific keys and settings.
Can I monitor domains for my clients?+
Yes. You can bulk-add domains, keep separate history, and share public health pages. Agency and MCP plans add more domain capacity and team seats; paid features include Slack, webhooks and API access.