It would be very, very nice to have an ESMTP extension that
allowed sending just the headers of an email, waiting for a
2xx or 5xx response, then sending the body.
See the CHUNKING extension defined in RFCs 1830 and 3030.
It was defined 14 years ago but I don't know anyone who uses it.
R's,
John
PS: Shouldn't that be spelled CHONGQING now?
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