[Mailman-Developers] Google Summer of Code - Spam Defense

[Jason Pruim]

On Mar 27, 2008, at 12:29 PM, Jo Rhett wrote:
> Timo Wingender wrote:
>> Discard messages from nonmembers is no option on most lists.
>
> AFAIK it is an option, but not the default and defaults are rarely
> changed in my experience.
>
>> The first action is to integrate support for SpamAssassin in
>> Mailman. Therefor I wrote a python class spamc which connects to  
>> spamd.
>> This gives the possibility to scan all incoming Mail.
>
> Entirely my opinion, but I suspect that this will be harder to do and
> less portable than having a mailman front-end that recognizes the
> headers inserted by the major spam gateways.
>
> For example, the sites I am aware of run amavisd+SA in front of  
> mailman.
>  They aren't going to disable amavis to have mailman run SA directly.
> Nor are sites with barrucudas likely to do so, etc etc.  My opinion
> entirely, but I think it would be better to make mailman aware of the
> headers inserted by these solutions.
>

One thing that I've been thinking about in regards to this... Is this  
job the responsibility of mailman? To scan for spam and other such  
things?

I do all of my scanning at the front end, all e-mail gets run through  
ASSP to scan blacklists, grey list, etc. etc. then it goes to the MTA,  
which in my case just verifies the account exists (Or an alias for it  
does) and then is delivered to mailman for delivery...

Why not run something like that instead of checking for all that stuff  
just before the delivery?


> Again, just my opinion.
>
> -- 
> Jo Rhett
> Net Consonance ... net philanthropy, open source and other randomness
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--

Jason Pruim
Raoset Inc.
Technology Manager
MQC Specialist
3251 132nd ave
Holland, MI, 49424-9337
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japruim at raoset.com