[OS X TeX] junk

Thu Aug 26 13:31:05 CEST 2004

I think that an automated way of doing this can and should
be implemented. As for the answer that x sends from a single
member in y minutes should not block him, as list members
may choose so send several messages at once at some later time,
I say
1) this never happens in my experience,
2) too bad if it does

This would be a very  minor inconvenience and should not be
a problem for almost all other list users.

I think its a good idea.

Van
--- Fredrik Wallenberg <fwallenberg at mac.com> wrote:

> Most lists (I don't remember if that is true for this one) requires a  
> return email to confirm the subscription.
> 
> Fredrik
> 
> 
> On Aug 25, 2004, at 18:37, Ross Moore wrote:
> 
> >
> > On 26/08/2004, at 8:38 AM, Matthias Damm wrote:
> >
> >>
> >> Am 25.08.2004 um 23:31 schrieb Stephan Hochhaus:
> >>
> >>> Is it possible to adjust the mailing-list software so that a user  
> >>> who obviously spams the list is blocked until he contacts a list  
> >>> admin? The trigger could be a number of x messages in a given amount  
> >>> of time. Let's say a sender lets 10 mails lose on the list within  
> >>> two minutes (hoping that noone here can type that fast)
> >>
> >> It might be hard to find a proper solution here (x mails in y minutes  
> >> might not work too well, since people with dialup-connections or with  
> >> mobile computers might write a number of mails and send them later at  
> >> once), but I am sure that there are solutions here.
> >
> > There is a low-tech way of guarding against this, that I use on  
> > another list:
> >
> >   ** moderate the subscription requests **
> >
> > An address like  garbage at 4readers.com  should raise alarm bells.
> > I'd refuse to let it join until a proper name or affiliation
> > was provided to satisfy me that there was a person there,
> > with a legitimate interest.
> >
> > Yes, this means that it can take awhile before a legitimate user
> > is allowed to join, but in practice this is rarely more than a few  
> > hours.
> >
> >
> > An alternative is to allow the suspicious name to join the list,
> > but with moderated postings initially.
> >
> > Mailman allows these options.
> >
> > It doesn't have any features based upon the frequency of posting,  
> > though.
> >
> >
> >
> >>
> >>> OR a sender sends ten messages with the same bodytext the block  
> >>> becomes active.
> >>> Any thoughts on such a solution in order to avoid 1200+ mails  
> >>> spamming every subscriber?
> >>
> >> A solution might include simply delaying postings of possible  
> >> mailing-list-flooders longer and longer the more postings they are  
> >> sending. If somebody sends really many postings, the delay might  
> >> raise to some hours or something. This reduces the negative effect  
> >> for dial-up users (their postings will be processed, but only some  
> >> time later), but although some postings might make it on the list in  
> >> the first place, but a catastrophe like the one we have seen cannot  
> >> happen.
> >
> >
> >
> >> btw: Although the effect of the flooding was quite bad already (see  
> >> the posting from several people to the list), we still were lucky: It  
> >> were some 2200 messages, but each of them was rather small. Just  
> >> imagine if, just for example, the auto-responder would have included  
> >> a copy of the original message in every new message. Or if it would  
> >> not have been August, and there would have been not 10 but 100  
> >> messages to the list in the loop!
> >
> > Yes, it could have been much worse than it was.
> >
> >
> > Cheers,
> >
> > 	Ross
> >
> >
> >
> >>
> >> Best,
> >> Matthias
> >>
> >> --  
> >> Matthias Damm
> >> mad at macpla.net
> >> PGP key: http://macplanet.macbay.de/MatthiasDamm.asc
> >> PGP fingerprint: CED3 6074 7F7D 3148 C6F3  DFF2 05FF 3A0B 0D12 4D41
> >>
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> >>
> >>
> > ----------------------------------------------------------------------- 
> > -
> > Ross Moore                                         ross at maths.mq.edu.au
> > Mathematics Department                             office: E7A-419
> > Macquarie University                               tel: +61 +2 9850  
> > 8955
> > Sydney, Australia                                  fax: +61 +2 9850  
> > 8114
> > ----------------------------------------------------------------------- 
> > -
> >
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> 
> 

=====
Van Jacques   vanjac12 at yahoo.com
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