- Extended by:
- Included in:
- Defined in:
Message-ID as specified by rfc822 is supposed to be a unique identifier for that individual email. That makes it an ideal tracking token for debugging and forensics, just like
X-Request-Id does for web request.
If an inbound email does not, against the rfc822 mandate, specify a Message-ID, one will be generated using the approach from
Methods included from
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