In response to my question about possible attackes on mailing lists
themselves (as opposed to individual subscribers) a couple of people
wrote to me and told me that infinite feedback loops between pairs of
mailing list daemons are generally (or often) prevented via a recognition
of the specific headers that are typically inserted by mailing list
daemons into the outgoing message which they send.
Unrelated to the other thing I mentioned the other day (i.e. a scheme now
beeing cooked up to try to thwart junk E-mail more directly) I would like
to find out as much as I can about these mailing-list-specific headers
because that knowledge might be of benefit to my ongoing work on my junk
E-mail filter.
So... What specialized headers are inserted into outgoing mailing list
traffic by commonly used mailing list daemons?
I am most particularly interested in getting more information about the
Sender: and X-Sender: headers, since I have noticed that one or the other
of these frequently appear in mailing list traffic. Which list manager
packages create these? Is there anything approximating a standard with
regard to the usage of these particular headers in conjunction with mailing
lists in particular? I ask because there doesn't seem to be a whole heck
of a lot of consistancy in the test data (mail message) that I have been
looking at.
-- Ron Guilmette, Roseville, California ---------- E-Scrub Technologies, Inc.
-- Deadbolt(tm) Personal E-Mail Filter demo: http://www.e-scrub.com/deadbolt/
-- Wpoison (web harvester poisoning) - demo: http://www.e-scrub.com/wpoison/
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