On Wed, 2019-01-02 at 14:43 +0100, Milan Crha via evolution-list wrote: > On Sun, 2018-12-23 at 23:29 +0000, Patrick O'Callaghan wrote: > > > I suppose the “universal” way to link to messages is using a mid: > > > URL > > > that refers to the Message-ID in a message's header. > > > See: https://tools.ietf.org/html/rfc2392 > > The Message-ID is mainly useful in debugging because it can be used > > to trace the flow of a message across mail servers. Although the > > definition describes it as a universal message *locator*, it's > > really > > more like a URI than a URL. > as far as I know, for example Google server uses Message-ID as an > overall unique message identifier. Once you've stored one message of > that Message-ID, it doesn't store another one with it. It has some > consequences with sent messages and mailing lists, but that's another > story.
For the record Cyrus also [can] dedup messages via the Message-ID. Within the mail-store inbound messages with the same Message-ID are stored as hard-linked files; this can dramatically reduce storage & I/O, particularly if your site has large distribution lists. This can have some side-effects if you use mail in some very strange ways [solution, IMO: don't do that]. -- Executive Committee Vice-Chair Michigan Association of Railroad Passengers 537 Shirley St NE Grand Rapids, MI 49503-1754 Phone: 616.581.8010 E-mail: awill...@whitemice.org GPG#D95ED383 _______________________________________________ evolution-list mailing list evolution-list@gnome.org To change your list options or unsubscribe, visit ... https://mail.gnome.org/mailman/listinfo/evolution-list
