>Therefore we can conclude that mailbacks are useless,
>unsafe, worthless?  The logic escapes me.

I said I wouldn't get into it, but.. Jeez, Murr, you can be very 
dense at times.

No, I never said that. I never implied that. I never even hinted that.

What I did, in fact, hint, is that systems using mailbacks ought to 
be FIXED to fix this other attack as well.

>  > I first documented these attacks back in, oh, 1996 or so. But
>>  whatever. This isn't an argument I'll get into.
>
>I've had various servers online since 1994.  I've never seen an
>info/confirm attack.  My personal experience says it quite rare.

when I was running majordomo on my apple site, I saw them at least 
weekly. Maybe the mac anti-PC bigots are smarter than your users or 
something. I think the record I saw was one poor idiot who was hit 
with over 2000 info files in a four hour period.

The answer is quite simple: list servers (and mailbots, and vacation 
bots and ANYTHING that auto-responds) needs to rate-limit their 
replies to an address. Wtih a vacation bot it's simple, and the 
standard vacation program has that feature. With MLM's, it's 
trickier, but doable. And should be done. but since Murr has never 
seen this, I guess we needed bother, since if he hasn't seen it, it 
can't possibl exist.



-- 
Chuq Von Rospach - Plaidworks Consulting (mailto:[EMAIL PROTECTED])
Apple Mail List Gnome (mailto:[EMAIL PROTECTED])

We're visiting the relatives. Cover us.

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