To the contrary: I am perfectly happy if there is no defined order or
constraint on the order, but I do think it's worth saying that they MAY
appear in either order (i.e., no implementation should ever act on the
order that they happen to appear in).
In practice a message may have several Delivered-To headers interspersed
with Received, depending on the internal forwarding setup.
I'm with Dave here -- there's nothing to standardize here beyond noting
that Delivered-To is a trace header so whever it's added, it goes at the
top.
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly
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