I could also imagine defining a notification mechanism
that makes use of the ipp: URI scheme
(<http://www.rfc-editor.org/rfc/rfc3510.txt>). This is the first time I have
heard someone request such a feature though.
I like that ideal. Arnt, I'll work on a Notify extension for that
with you, if you like. Let me know.
For the more general question, Wolfgang and I had once started to
write up a "call out to an external process" extension, which would
basically allow a script to run any (approved) program on the message,
which could include an abuse scanner, an attachment filer, a printing
or faxing program, or anything else. Our idea was that allowed
programs would have to be flagged, such as by storing them in a
particular place or putting their pathnames in certain metadata, to
But we never went anywhere with that, after the initial knocking about.
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