[Mailman-Developers] Integrating TMDA (was Re: Cute TMDA use)

[JasonR.Mastaler]

On another note, the logical approach IMO is to build this
functionality into Mailman, rather than having to attach TMDA to your
Mailman installation.  TMDA includes much more than is relevant for
protecting a mailing list.

Mailman already includes most of the tools to make this work.  TMDA's
challenge system is no more complex than how Mailman verifies a new
subscriber.  Once you turned this feature on, Mailman would store
unconfirmed incoming messages under qfiles/ somewhere, prompt for
confirmation, and release the message to the list once the
confirmation is returned.

I envision Mailman's web configuration interface making this very
easy.  A checkbox to toggle whether existing subscribers are allowed
through, a textbox to enter explicitly blacklisted addresses, etc.

Gravy like the "auto-whitelist" feature could be stolen from TMDA 
(also a pure-Python, GPL'd app) if necessary.

I'd expect this to be no more than a few days work for someone
intimately familiar with Mailman's source.

I don't know of any MLM with this functionality built-in, and it will
virtually eliminate all spam.  How's that for motivation? <wink>

-- 
(http://tmda.net/)