Subject: Re: [Imap-protocol] mailbox hierarchy conventions? From: Mark Crispin Date: 2007-03-12 0:11:20 Message-ID: alpine.OSX.0.83.0703111704450.20984@pangtzu.panda.com On Sun, 11 Mar 2007, Bill Janssen wrote: > I'm reading a lot on the Web about Apple Mail and its notion that all > mailboxes be sub-mailboxes of INBOX, apparently because a popular IMAP > server does it that way. I suggest that you concern yourself with complying with IMAP, and not try to program for the whims of an individual client. I did not find Apple Mail to be a satifactory IMAP client. > I'm re-exporting an MH mail folder setup One caution is that UIDs need to be immutable, or at least you need to change the UIDVALIDITY when they change. This is a problem if you use MH message ID numbers for UIDs, because the mh pack and sort operations will renumber the message ID numbers. As distributed, UW imapd simply returns a new UIDVALIDITY with each new session for an mh mailbox. This is a problem for disconnected clients which use the UIDs to determine if it must download the message or if it already has it cached. Lauren Weinstein has a hacked version of UW imapd, although with a hacked version of mh, that I helped him with that has sticky UIDs and changes the UIDVALIDITY only when a pack/sort is done. I don't know his current status; he was using a mobile client that was quite embryonic and had lots of growing pains, thus there were multiple unknowns when debugging all this. > My plan was to basically represent each of these MH folders as an IMAP > mailbox, and add another top-level mailbox called "INBOX", which would > normally be empty (there's a procmail daemon that sorts the mail). So > there's a single namespace and there's no root for reference names. As I understand it, this is alright. Have you thought about trying UW imapd, even if you plan to deploy your own implementation, just so you have reference to compare? -- Mark -- http://panda.com/mrc Democracy is two wolves and a sheep deciding what to eat for lunch. Liberty is a well-armed sheep contesting the vote. _______________________________________________ Imap-protocol mailing list Imap-protocol@u.washington.edu https://mailman1.u.washington.edu/mailman/listinfo/imap-protocol