Free tools
Domain email health check
Enter your primary sending domain for a consolidated readiness report.
What this checks
Aggregates MX, SPF, DMARC, BIMI, MTA-STS signals, common DKIM selectors, and reputation into one score.
Why it matters
A single health view helps teams prioritize fixes before high-volume sending.
Results
Common issues
- Fixing only one authentication layer while SPF, DKIM, and DMARC all fail.
- Ignoring blacklist signals after a reputation incident.
- Running health checks once instead of before major sends.
How to fix
- Resolve SPF, DKIM, and DMARC in order of failure severity.
- Delist and remediate before scaling volume.
- Re-scan after DNS or provider changes.
How MailFleet helps
MailFleet bundles health checks with campaign preparation so teams see DNS and content issues in one workflow.
Related free tools
Delivery note: MailFleet helps users manage campaigns through their own sending providers. Delivery outcomes depend on sender reputation, DNS authentication, content quality, recipient engagement, list quality, provider rules, and mailbox filtering systems.
For regulatory context on commercial email in the United States, see the FTC CAN-SPAM compliance guide.
Frequently asked questions
Aim for authenticated mail (SPF + DKIM + DMARC), clean lists, and no blacklist listings — not a single number alone.
Get started
Prepare and control campaigns with MailFleet
Run integrated diagnostics, manage providers, and monitor campaigns from a professional desktop app.
Available on
- Windows 10+
- macOS 12+
- Linux (DEB & RPM)
Same desktop experience across every platform — one workflow for your entire team.