On 3/31/2019 10:57 AM, Viruthagiri Thirumavalavan wrote:
I need some clarification about the term "email payload".
The term 'payload' is not a formal term of art in email. The word
appears only once in RFC 5598, and not in a context that concerns your
topic of interest. It does not appear at all in RFC 5321 or RFC 5322 or
RFC 3501.
Considering the message body as the payload is reasonable in some cases,
but not in others, because there is quite a bit of user-to-user
information in some of the message header fields.
In SMTP context, it's probably safe to say that everything after the
DATA command is payload. Certainly in terms of typical use of the word
payload in protocol discussions, I think that's a straightforward
assessment.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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