Would limiting subscription requests to one per day help. I'm familiar with
the Mailman code, having modified it for use at MIT, and can code the
necessary changes. I suspect only one file would need to be changed.
On Wed, Jun 13, 2018 at 6:16 PM Gary R. Schmidt <grschm...@acm.org> wrote:
> On 13/06/2018 21:42, Gary R. Schmidt wrote:
> > On 13/06/2018 21:22, Richard Hipp wrote:
> >> Unfortunately, I'm going to need to shut down this mailing list due to
> >> robot harassment. I am working to come up with a fix or an
> >> alternative now. Your suggestions are welcomed.
> >> This mailing list has operated for many years using GNU MailMan.
> >> Unfortunately, that software is not able to cope with modern robot
> >> spammers, even with the latest updates. And the source code for
> >> MailMan is sufficiently opaque that I am unable to work on it.
> >> The most recent problem is that robots are visiting the subscription
> >> page and entering innocent user's email addresses and names. This
> >> causes a confirmation email to be sent to that user. If it were just
> >> single confirmation email that the user could ignore, that would be
> >> fine. But apparently MailMan sends one email for each subscription
> >> request. The robots have figured this out and are putting in hundreds
> >> of subscription requests for the same individual, apparently to harass
> >> them.
> >> I have already suspended new subscriptions. Existing subscribers will
> >> be able to continue using this list until I come up with a replacement
> >> (or a fix to the current problem) but no new subscribers will be
> >> accepted.
> > This is an increasing problem, and has been discussed on the Mailman
> > mailing list recently, you should join them and see what mitigation
> > strategies are available.
> One is here: https://github.com/noabospam/abospam
> Gary B-)
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