In plain terms
What this checks,and why.
In one line
A domain health check combines authentication records (SPF, DKIM, DMARC), MX presence, and common DNS mistakes in one view.
Why it matters
You need a single health snapshot after migrations, DNS edits, or sudden metric shifts.
How to act on it
Check after every DNS change and on a schedule; pair with monitoring for drift detection.
Guide
Read the result.
What healthy email DNS looks like
A valid SPF record with lookup count under the limit, a published DKIM selector with active signing, a DMARC record with an appropriate policy and reporting, and MX records resolving for domains that receive mail.
FAQ
Questions, answered.
After any DNS or provider change, and periodically otherwise. Automated monitoring catches drift before it becomes an incident.
Free tools
Fix it once.Watch it forever.
CloudJet re-checks every record on every sending domain daily and fixes drift before it costs you the inbox.