9 Nov
2009
9 Nov
'09
2:04 p.m.
This is broken by design. The message-ID is a MUA
thing and therefore
should never be changed by any MTA. If Exchange does not use the
recipient mailbox *and* the message-ID to supress duplicates the
developer have probably not read any RFC. But maybe they have learned
since 2004??
Whether or not Exchange does not right thing in this case is debatable
but that's how they implemented it.
From RFC 2822 section 3.4.6
In all cases, it is the meaning that the sender of the message wishes
to convey (i.e., whether this is the same message or a different
message) that determines whether or not the "Message-ID:" field
changes, not any particular syntactic difference that appears (or does
not appear) in the message.
Correct me if I'm wrong but with "sender" they do not mean the person
that created the message. With sender they mean the sender that changes
the messages (in this case the Djigzo server).
--
Djigzo open source email encryption