Re: [lemonade] Regarding CONDSTORE IMAP extension

Samsung SVL <samsungsvl@yahoo.com> Tue, 03 December 2013 00:02 UTC

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Date: Mon, 02 Dec 2013 16:02:29 -0800
From: Samsung SVL <samsungsvl@yahoo.com>
To: Chris Newman <chris.newman@oracle.com>, "lemonade@ietf.org" <lemonade@ietf.org>
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Subject: Re: [lemonade] Regarding CONDSTORE IMAP extension
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Reply-To: Samsung SVL <samsungsvl@yahoo.com>

Hi Chris,

Thanks for your clarification.

Regards,
Jay


>________________________________
> From: Chris Newman <chris.newman@oracle.com>
>To: Samsung SVL <samsungsvl@yahoo.com>; lemonade@ietf.org 
>Sent: Monday, 2 December 2013, 18:10
>Subject: Re: [lemonade] Regarding CONDSTORE IMAP extension
> 
>
>--On December 2, 2013 13:51:24 -0800 Samsung SVL <samsungsvl@yahoo.com> 
>
>wrote:
>
>> Hi All,
>>
>> Kindly clarify my below query regarding "CONDSTORE" IMAP Extension.
>>
>> When IMAP server advertises the "CONDSTORE" support as part of
>> CAPABILITIES, client assumes that server support IMAP CONSTORE
>> extension. 
>>
>> As per RFC 4551,  client issues SELECT command  for a mailbox in the
>> below format and receives the response with HIGHESTMODSEQ value as  "1"
>>
>> C: A142 SELECT INBOX
>>
>> During the subsequent SELECT command, client receives "HIGHESTMODSEQ"
>> value always set to "1". Its not getting incremented with respect to the
>> changes in the mailbox. 
>>
>> Some IMAP server changes the HIGHESTMODSEQ value only when client issues
>> SELECT command in the below format.
>>
>> C:A142 SELECT "INBOX" (QRESYNC ("UIDVALIDITY" "HIGHESTMODSEQ"))
>>
>> Kindly clarify which format is right one, because most of the IMAP server
>> behaves differently. 
>
>Technically, the former command is correct only if you've previously issued 
>a condstore-enabling command (or don't want to use condstore) and the 
>latter is correct only if the server advertises QRESYNC and you have issued 
>"ENABLE QRESYNC" previously. For more details see RFC 4551 and RFC 5162.
>
>Have you tried using:
>
>C: A142 SELECT INBOX (CONDSTORE)
>
>That's a condstore-enabling command that servers advertising the CONDSTORE 
>capability are required to support. Servers are free to not return 
>HIGHESTMODSEQ at all until a condstore-enabling command occurs, and then 
>they MUST return either HIGHESTMODSEQ or NOMODSEQ.
>
>Of course, if a server is returning HIGHESTMODSEQ and not updating it after 
>flag changes, that server may have a bug, so you may have to fallback to 
>not using CONDSTORE with that server and just do a full resync every time. 
>You might want to report that bug to the server vendor so they have the 
>opportunity to fix it in a subsequent release.
>
>        - Chris
>
>
>
>

[lemonade] Regarding CONDSTORE IMAP extension Samsung SVL
Re: [lemonade] Regarding CONDSTORE IMAP extension Timo Sirainen
Re: [lemonade] Regarding CONDSTORE IMAP extension Samsung SVL
Re: [lemonade] Regarding CONDSTORE IMAP extension Timo Sirainen
Re: [lemonade] Regarding CONDSTORE IMAP extension Chris Newman
Re: [lemonade] Regarding CONDSTORE IMAP extension Timo Sirainen
Re: [lemonade] Regarding CONDSTORE IMAP extension Samsung SVL
Re: [lemonade] Regarding CONDSTORE IMAP extension Dave Cridland
Re: [lemonade] Regarding CONDSTORE IMAP extension Samsung SVL