On Tue, 25 Jul 2017 10:28:41 -0500 (CDT) David B Funk wrote: > If the original message actually had that message-ID form when it > arrived at the OP's mail MX server, then your assessment makes sense. > > However it's entirely possible that message-ID was added by the OP's > mail server because the incoming message had no message-ID to begin > with. There's insufficient information in that pastbin example to > tell.
The fact that it's located between the To and Subject headers suggests that it did predate delivery, but it may just be overzealous munging.
