2 min readAn original planning guide. Use the linked primary documentation for platform details and the supported procedure for your environment.
Identify one message
Record sender, recipient, time with timezone, and Message-ID if available. Use an authorized test message rather than sensitive customer content.
Check the sending result
Look for submission confirmation, a queue state, a rejection, or a bounce. A sent folder alone may not describe the final delivery outcome.
Check the receiving side
Review junk, quarantine, filters, forwarding, and mailbox limits through the provider's supported tools. Compare another controlled recipient if useful.
Escalate with the evidence
Give the mail provider the exact message identifiers and diagnostic text. Mark unknown stages instead of declaring the cause prematurely.
Worked scenario
See the plan in practice.
A server accepts a test message but a recipient rule moves it into another folder. The evidence trail prevents an unnecessary MX change.
Review your result
Your acceptance checklist
Message identified- Status captured
- Receiving rules checked
Use these checks to identify gaps in your email delivery investigation note. Assign an owner to any unresolved item before the next dependent step.
The terms behind the task
- Message-IDA message header field intended to identify a particular version of an email message.
- Email bounceA delivery failure notification generated when a message cannot be delivered as expected.
- Email deliverabilityThe practical ability of legitimate mail to reach its intended destination, including acceptance and placement decisions by receiving systems.
Primary references
For the underlying concepts and current platform details:
