[Mailman-Users] Mailman Content Filtering Vs. PRE-Mailman Filtering

[Jon Carnes]

I've long been a proponent of "the right tool for the right job."  In
that vein, I recommend running your filtering using a pre-processor.

Extended Content Filtering could easily be added in to Mailman - it is
Open Source.  You could easily call an external content filter by
sticking in a new handler at the beginning of the stream.  Then it would
integrate automatically with all your lists.  Ahh the beauty of Open
Source!    

On Sat, 2003-03-15 at 12:44, Jeremy Butler wrote:
> I'm trying to figure out the BEST way to do content filtering with 
> Mailman:  (1) through Mailman's own content filtering or (2) through a 
> dedicated filter (e.g., Procmail Email Sanitizer) that processes mail 
> BEFORE Mailman sees it.
> 
> In Mailman's favor is the convenience of having the filter built-in and, I 
> presume, a more efficient use of resources.
> 
> But in favor of Sanitizer (or another filter) is greater flexibility in the 
> processing of attached files.  One can quarantine/defang/scan for viruses 
> in misbehaving file attachments.
> 
> I've read in the Mailman FAQ about how to filter incoming mail before it 
> hits Mailman (using Procmail), but my question is a more philosophical one:
> 
> SHOULD one pre-filter email before it gets to Mailman?
> 
> And if one should instead rely on Mailman for filtering, could someone 
> provide samples of what they've used for
> 
> filter_mime_types
> pass_mime_types
> 
> Thanks!
> 
> P.S.  I'm using Mailman 2.2.1 with Postfix on a RedHat 8 system.
> 
> 
> Jeremy Butler
> jbutler at ua.edu
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