Customized mail-header parsers

To: JSP@ibm.com
Subject: Customized mail-header parsers
From: David Vinayak Wallace <GUMBY@mc.lcs.mit.edu>
Date: Tue, 15 Sep 87 16:54:22 EDT
Cc: slug@r20.utexas.edu
In-reply-to: Msg of 15 Sep 1987 10:44:49 EDT from J. Penberthy <JSP at ibm.com>
Resent-date: Tue 15 Sep 87 15:51:25-CDT
Resent-from: CMP.SLUG@r20.utexas.edu
Resent-message-id: <12334889444.9.CMP.SLUG@R20.UTEXAS.EDU>
Resent-to: SLUG:;

Look at the parser for the ITS-style header, which is vaguely similar.