On 06/01/2012 11:09 AM, Michael M Slusarz wrote: > Quoting Claude Tompers <claude.tomp...@restena.lu>: > >> Hi, >> >> I have a user with quite a large mail box (about 200 messages in the >> inbox and a gazillion folders). >> If he enables new mail notifications, it takes him about a minute to get >> it's inbox displayed. >> Is this normal behaviour because the system scans all folders or should >> it be faster ? > > If he has a "gazillion" folders, and he is checking each one for > newmail, than yes... this is expected. From RFC 3501 [6.3.10]: > > Unlike the LIST command, the STATUS command is not guaranteed to > be fast in its response. Under certain circumstances, it can be > quite slow. In some implementations, the server is obliged to > open the mailbox read-only internally to obtain certain status > information... > > The STATUS command MUST NOT be used as a "check for new > messages in the selected mailbox" operation (refer to > sections 7, 7.3.1, and 7.3.2 for more information about > the proper method for new message checking). > > Because the STATUS command is not guaranteed to be fast > in its results, clients SHOULD NOT expect to be able to > issue many consecutive STATUS commands and obtain > reasonable performance. > > Despite this warning, this is EXACTLY what everybody uses STATUS for. > So recent IMAP extensions have directly addressed this issue. You > should upgrade to an IMAP server that supports LIST-STATUS (and/or > mailbox stat caching) if you want to see much improved behavior. Or, > the better solution, is to disable the option to allow a user to poll > all mailboxes. THIS IS A TERRIBLE IDEA AND IS ALMOST CERTAINLY NOT > WHAT THE USER WANTS. NO USER SHOULD BE POLLING *ALL* THEIR MAILBOXES. > > michael > > ___________________________________ > Michael Slusarz [slus...@horde.org] > Hi,
Thanks very much for your explanations. kind regards, Claude -- Claude Tompers Ingénieur réseau et système Fondation RESTENA - Réseau Téléinformatique de l'Education Nationale et de la Recherche 6, rue Richard Coudenhove-Kalergi L-1359 Luxembourg Tel: +352 424409 1 Fax: +352 422473
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