Splitting rule for second header occurrence

[Jens Klöcker]

Hi,

currently I deputize a colleague. We have a mail filtering rule active
on the server side which is forwarding all mails from outside of our
company to me, and I want to split them into a separate group with a
fancy splitting rule.

As far as I see, the headers look like

--8<---------------cut here---------------start------------->8---
...
Delivered-To: <my address>
...
Delivered-To: <my colleagues address>
...
--8<---------------cut here---------------end--------------->8---

I'm now looking for a splitting rule matching the *second* occurrence of
the "Delivered-To" header (with my colleagues address).

Any ideas about how to do this?

-- 
Jens Klöcker · Public key: http://www.kloecker.org/jens/public-key.txt
        Mastery of UNIX, like mastery of language, offers real freedom.
                                                      (Thomas Scoville)

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