Thanks for the information. I do not altogether understand it but I think I have personally settled on a procedure to reduce the risk of spam. I don't want to go through the procedure, again, of eliminating an email address and notifying all contacts of the change.

Your point 1 is surely confined to the contents and subject of the message, not details of the sender.

Point 2 is like saying, we can't beat them, why bother with any precautions?

Your last point. I (and, no doubt, others) would be interested to know how to modify "the attribution line" in the way suggested.

I've only recently noticed that Jan is not subscribed. (I've been able to customise displayed headers using the Mozilla Mnenhy tool, so the information I see now is clearer.)

We've been asked to cc unsubscribed users but this seems to be another reason not to do so. [BTW, having tried unsuccessfully to post to the list without being subscribed, I don't know how anyone does it. (Sorry, wandering off the topic.)]

M. Fioretti wrote:
On Sun, Sep 03, 2006 11:33:00 AM +1000, Terry
([EMAIL PROTECTED]) wrote:

I missed that. There are two tabs on the Mail Reader - "Standard Display" and "Raw Display". The first is bad enough.

Why publish any of this information?

1) Because there are legitimate uses which may save time and reduce
   future list traffic

   2005: Jon says "thanks for your help, I will modify your OOo macro
         to do what I need"

   2006: Jim must do the same thing, finds the macro mentioned in the
         archive, can directly ask Jon "may I have a copy please?"
         The possibility to do this saved me several times

2) Because you can publish nothing and it could still be useless to
   reduce spam. All a spammer needs to do to prevent such measures
   is... subscribe just like you and me :-) . Or, even if no header is
   published at all, harvest addresses from the attribution line in
the message BODY! "On sun, Sep 03...tjcoffs-... wrote" (*) Or do a lot of other things which are left as exercise for the
   reader.

(*) In some email clients, the attribution line may be modified to not
    show the email addresses. Most people don't do it because they just
    not realize it's there and by being there gives addresses to spammers.
    Some do it to show how careful they are to not help spammers.
    Others, like me, don't bother because addresses are harvested anyway
    in other ways.

Ciao,
        Marco

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