[lemonade] Regarding CONDSTORE IMAP extension

Samsung SVL <samsungsvl@yahoo.com> Mon, 02 December 2013 21:51 UTC

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Date: Mon, 02 Dec 2013 13:51:24 -0800
From: Samsung SVL <samsungsvl@yahoo.com>
To: "lemonade@ietf.org" <lemonade@ietf.org>
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Subject: [lemonade] Regarding CONDSTORE IMAP extension
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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. 

Regards,
Jay