I just subscribed to this list, and it seems the mail server does not insert any headers to indicate what list this is. Most lists will typically insert headers like:
Precedence: bulk X-BeenThere: [EMAIL PROTECTED] X-Mailman-Version: 2.0.12 List-Post: <mailto:[EMAIL PROTECTED]> List-Subscribe: <http://MailMan.RWTH-Aachen.DE/mailman/listinfo/procmail>, <mailto:[EMAIL PROTECTED]> List-Unsubscribe: <http://MailMan.RWTH-Aachen.DE/mailman/listinfo/procmail>, <mailto:[EMAIL PROTECTED]> List-Archive: <http://MailMan.RWTH-Aachen.DE/pipermail/procmail/> List-Help: <mailto:[EMAIL PROTECTED]> List-Id: discussion of the procmail program <procmail.lists.RWTH-Aachen.DE> X-BeenThere is the most common approach. Because I need something to key on for mail processing, I thought about cancelling my subscription and signing on through Yahoo Groups, which uses a common header format for all its lists. The problem is that Yahoo Groups only offers a digest version of amanda-users. How are you folks handling it?
