DIAGNOSTIC PLAYBOOK
Review an email DNS change before publishing it
A DNS review should establish the intended behavior, affected senders and rollback path. A syntactically valid record can still authorize the wrong service or route mail to the wrong destination.
HealthCheck Email editorial team · · Examples are illustrative
How to investigate
- Save the current authoritative record set and describe the exact change in plain language.
- Check dependencies, provider instructions and the mail streams that need verification.
- Assign a publisher and verifier, then record post-change DNS and message results.
What this looks like
ILLUSTRATIVE EXAMPLE
A request to add a second SPF record is caught during review and converted into an update to the existing policy after checking its lookup budget.
A mistake to avoid
A screenshot of the DNS editor is not proof of public publication. Verify the actual authoritative answer after saving.
Keep the result in context
A monitoring routine needs an owner, a baseline and a response to a meaningful change. Keep the sender inventory and approved DNS configuration alongside incident notes. HealthCheck Email supplies checks, history and supported alerts; publishing DNS changes and administering mail systems remain with your team.
Take the next step
Use the related check to gather evidence, then compare it with the affected message or service. Keep the result and time with your notes so a later change can be distinguished from the original problem.
Sources and further reading
The protocol references below explain the underlying behavior. Your sending or DNS provider supplies the account-specific settings for its service.