[Mailman-Developers] MM3: Content filter rules

[Barry Warsaw]

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On Mar 2, 2009, at 12:39 PM, Adam McGreggor wrote:

> I'm wondering if it would make sense to use mailcap(5) -- either the
> system's, or MM user's should one exist, to generate a list of
> MIME-Types for Mailman, and nice tickboxes alongside to select  
> "Reject,
> Discard, Allow, Forward to Admins" or something similar (read-in  
> mailcap
> on each load of the relevant part of the admin web-URI?/each execution
> of the command-line util?).

Python has a mailcap module, so that would make the most sense.

> It would be grand (IMO) to have a Reject message using something like:
> (auto-generated) "$LISTNAME doesn't accept $MIMETYPE" plus, perhaps  
> the
> opportunity to provide some more 'useful' information:
>    "your mail client's broken",
>    "HTML's for the web, not email",
>    "we don't like MS Word",
>    "stop using proprietry formats"
> or some other customizable message

This isn't an area I've addressed  yet, but customizable messages  
needs to be thought about, especially when multilingual rejection  
messages are considered.

> Maybe I should draw what I'd like...
>
> Perhaps (shudder), allowing an over-ride to let *some* users use a
> specified content, whilst rejecting for others...
>
> Have I over-complicated things? Or am I barking mad?

I'm not sure per-user filters are feasible.  I'm also not sure you  
want to see 35 or more checkboxes on the whitelist/blacklist page.   
That's how many entries are in mailcap.getcaps() on OS X.

Barry

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