DIAGNOSTIC PLAYBOOK
Triage an email health alert without making blind changes
An alert identifies a change or failed check, but the first response should verify scope and impact. Immediate unrelated DNS edits can erase useful evidence and add a second problem.
HealthCheck Email editorial team · · Examples are illustrative
How to investigate
- Record the domain, finding, previous value and first observed time.
- Repeat the relevant lookup or message test and check for an approved change.
- Assign the likely owner and distinguish an active delivery impact from a configuration improvement.
What this looks like
ILLUSTRATIVE EXAMPLE
A DNS record disappears during a provider migration. The triage confirms whether it was intentionally retired before restoring a potentially obsolete value.
A mistake to avoid
A recovered check may reflect a transient issue or resolver difference. Keep the incident evidence rather than assuming there was never a problem.
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.