If we're speaking of a Delivered-To: header, then no I did not.
Exim does not currently have a specific facility for generating one.
Perhaps you were thinking of my description of Envelope-to:
Right, the header described in draft-crocker-email-deliveredto-05 is in
fact Envelope-To, not Delivered-To.
As far as I can tell, based on Viktor, Sam, Jeremy, and me descring the
operation of software we know in detail, Delivered-To never records an
envelope address. When the string looks like a mailbox, that's a
coincidence of implementation where the internal form happens to resemble
the inbound envelope and the MTA's address translations were not too
complicated.
Dave has pointed out that Gmail also adds a Delivered-To address, but I
have looked and found no description of it at all, just some speculation
in ServerFault. I would guess that Google is familiar with existing
Delivered-To and implemnted it the same way, as a loop breaker. But
that's just a guess. Does anyone have any documentation or personal
knowledge of what Gmail's header does?
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Primary Perpetrator of "The Internet for
Dummies",
Please consider the environment before reading this e-mail. https://jl.ly
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