In
<C6DDA43B91BFDA49AA2F1E473732113E0A19E8(_at_)mou1wnexm05(_dot_)vcorp(_dot_)ad(_dot_)vrsn(_dot_)com>
"Hallam-Baker, Phillip" <pbaker(_at_)verisign(_dot_)com> writes:
OK, I have now found the source of the header!
It turns out that outlook includes all the headers of a message along with
the content. Presumably so that calendar functions etc work properly.
No, Outlook does *not* include all the headers of a message. If it
did, your message would have had a References: and In-Reply-To:
header. It sure would be nice if all MUAs created and included those
headers, it would make threading work a heck of a lot better.
-wayne