[Zope] Restricting Posts to Subscribers

[Jens Vagelpohl]

>> +1 on restring to subscriber only. If you want to add some
>> blacklists, I'll advise http://cbl.abuseat.org/
>
> Why would we need blacklists if we're restricting posts based on 
> subscription?

Very simple: The blacklists operate at the Postfix level. The checks to 
see who is subscribed and who is not operate at the Mailman level. 
Mailman is, err, very resource intensive. Any mail that can be rejected 
by Postfix and thus never reaches Mailman is a big win. Andrew and I 
saw that yestrday when we tweaked some settings.

jens