[JDEV] jabber:iq:filter

[Sebastiaan 'CBAS' Deckers]

Hello,

Where can I find information about jabber:iq:filter ? Winjab tries to use
this to store message rules on the server. (I think, but maybe the rules are
actually processed by the server?)
I can't find any information about it (some docs mention the napmespace but
don't explain it).
Jabber.com and other public servers return 404 errors.

Can someone tell me if a rules namespace exists and where it is documented?
If it doesn't exist, what would be the best way to implement it?

Thanks,
Sebastiaan Deckers