[consulting] OT: Spam

mark burdett mfburdett at gmail.com
Wed Dec 20 22:23:07 UTC 2006

Hi, I've seen small open mailman lists with half of the subscribers
consisting of spam bots.  some with "spam" or "spamtest" in their email
address, and others pretending to be "normal", but unknown people with
weird/suspicious domains.  Hopefully on a larger list like this one, the
ratio of human to spambot would be better ;)  The spam bots didn't seem to
cause a problem for me thanks to greylisting, spamassassin, etc.


On 12/20/06, Gary Feldman <dpal_gaf_consult at marsdome.com> wrote:
> Tim Kehres wrote:
> > It is not uncommon for spammers to troll for the names and email
> addresses
> > of list contributors and then use those addresses as the originator
> address
> > in their spams.   I've been seeing this on many of the IETF lists for
> some
> > time now.  The only real solution that I've been able to sort out is
> more
> > active moderation on the part of the list maintainer.  Fortunately
> mailman
> > provides some pretty good tools for this.
> >
> I'm not sure what you're saying.  The IETF archive doesn't do anything
> sophisticated to hide email addresses.  It seems to just replace the "@"
> with " at ".  So that can be harvested automatically, without
> subscribing to the lists.
> The Drupal archives, on the other hand, hide the domain name entirely.
> There should be no way to find the domain name by scraping the archives
> (at least there's no obvious way).  Are you suggesting instead that
> spammers are actually subscribing to the mailing list, and downloading
> the subscribers list or scraping the email they receive?
> I don't see how active moderation pertains, since the lists are
> generally unmoderated.  Or do you mean management of the lists, and if
> so, how?
> Gary
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