Re: [Mailman-Developers] Google Summer of Code: Integration of Search Code

An archiver should certainly provide an interface to look up a message by [...] the hash.

Including List-Id in the hash calculation allows the archiver to display a cross posted message in context. See http://www.mail-archive.com/faq.html#listserver

Also, a gentle reminder that I put some comments in the Launchpad entry for IMailingList.archive*

Jeff