[Mailman-Users] The economics of spam

Barry Warsaw barry at list.org
Wed Dec 24 13:51:38 CET 2008

Hash: SHA1

On Dec 24, 2008, at 2:33 AM, Brad Knowles wrote:

> on 12/23/08 2:14 PM, Stephen J. Turnbull said:
>> And the primary maintainer of a piece of software which AFAIK
>> continues to be a source of backscatter might want to be a little
>> careful about suggesting that vendors be billed ....
> We give the list owners and site administrator the option of  
> choosing how to configure their lists.  So, the choice of who to  
> send the bill to would end there.
> And to really solve the backscatter issue in this case would require  
> that we integrate tightly enough into the MTA that the processing  
> could be done while the sender is held open.  The options in that  
> space are mostly specific to a given MTA, although postfix also  
> supports the sendmail milter interface in addition to the preferred  
> policyd method.
> If you wanted to be of service to the community, you could always  
> write a milter in Python that would go through all the same checks  
> that Mailman would do and indicate back to the MTA whether or not  
> the message would be accepted.

Mailman 3 will also probably support LMTP as the default local  
delivery mechanism, which I think will address the same issues.

- -Barry

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