Quoting Ashley Yakeley <[EMAIL PROTECTED]>: > At 2002-04-23 08:21, Ken Murchison wrote: > > >> Also, I heard that SCAN was under discussion in the appropriate > >> IETF group. Anyone know more about its current status? > > > >Its not being discussed at all. > > Well that's the IETF for you...
This is a non-standard, and possibly dead extension which isn't part of imapext's agenda. > So what is the best way for an IMAP client to detect recently arrived > mail in a hierarchy of around a thousand mailbox folders? Should it do a > SELECT on each one periodically? Or should it open up 1000 connections, > SELECT a folder and do IDLE on each one? You might want to check with the imap mailing list ([EMAIL PROTECTED]), but here is a snippit from Mark Crispin's (the father of IMAP) tongue-in-cheek 10 commandments for an IMAP client. 8. Thou shalt not fear to open multiple IMAP sessions to the server; but thou shalt use this technique with wisdom. For verily it is true; if thou doth desire to monitor continuously five mailboxes for new mail, it is better to have five IMAP sessions open on the mailboxes. It is generally not good to do a succession of five SELECT or STATUS commands on a periodic basis; and it is truly wretched to open and close five sessions to do a STATUS or SELECT on a periodic basis. The cost of opening and closing a session is great, especially if that session is SSL/TLS protected; and the cost of a STATUS or SELECT can also be great. By comparison, the cost of an open session doing an IDLE or getting a NOOP every few minutes is small. Great praise shall be given to thy wisdom in doing what is less costly instead of "common sense." -- Kenneth Murchison Oceana Matrix Ltd. Software Engineer 21 Princeton Place 716-662-8973 x26 Orchard Park, NY 14127 --PGP Public Key-- http://www.oceana.com/~ken/ksm.pgp
