On Wed, 9 Jan 2008, you wrote:
Which brings up the old question again: why not use the already existing
ENVID (RFC 3461) for this purpose?
I don't see the connection. ENVID seems intended to be unique for each
message, and is intended to stay with a message all the way. The SWK only
appears on the sender-smarthost to recipient-MX hop, and is constant for a
given forwarding relationship.
Also, ENVID is permanently attached to the DSN ESMTP extension, which is
gigantic poison pill from which otherwise-sane MTA authors run screaming.
It's for the best if we pretend it doesn't exist.
---- Michael Deutschmann <michael(_at_)talamasca(_dot_)ocis(_dot_)net>
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