On Wed, 23 Nov 2011, spamassas...@lists.grepular.com wrote:
If a message comes in to my MTA with one of those Message-Id's in the "In-Reply-To" header, it bypasses the spam filtering because it is a response to a message that I sent
what about if your message was stored in a folder of your correspondent, his machine is infected by a virus, and this virus sends fake replies using your message id ? I've seen cases like that in the past.
