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List:       imap
Subject:    Re: [Imap-protocol] iCloud IMAP won't ENABLE CONDSTORE or QRESYNC but lists them as CAPABILITIES
From:       Gene Smith <gds () chartertn ! net>
Date:       2021-11-08 17:43:00
Message-ID: 1d168ff9-3899-dde7-c470-67643d4e845c () chartertn ! net
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Roman,
Hope you don't mind me CCing this to the list.

I think that 
<https://wiki.mozilla.org/MailNews:Supported_IMAP_extensions> is 
accurate. But, CONDSTORE is actually turned off by default due to some bugs.

It appears to me the QRESYNC is very useful in detecting exactly what 
was expunged/VANISHED.

So far I've only found 2 servers that fully support CONDSTORE and 
QRESYNC: Dovexcot and Cyrus. I think maybe Zimbra does but my test 
server is not quite working right now, so not sure.

Again, very disappointing the icloud claims it supports both, but 
doesn't seem to.

If you can provide me with a test imap account to Communigate-Pro, with 
or without QRESYNC, it would be appreciated.

There is no definite schedule to add QRESYNC to TB. Right now I'm just 
seeing if it's feasible and useful. Also, trying to fix the bugs in the 
CONDSTORE implementation that caused it to be disabled by default in TB.

-gene


On 11/7/21 16:26, Roman Prokhorov wrote:
> Hi,
> 
> When Thunderbird will support QRESYNC and if this list is still valid 
> <https://wiki.mozilla.org/MailNews:Supported_IMAP_extensions>?
> 
> 
> I'm a developer of CommuniGate Pro server; a year ago I had implemented 
> CONDSTORE extension using Thunderbird as a test client. I could also add 
> QRESYNC but didn't know what client to test it with, and didn't find 
> that extension to be useful. But if you need an IMAP server to test with 
> we can join our efforts.
> 
> 
> 
> 
> On 06.11.2021 23:13, Gene Smith wrote:
>> I've been looking into adding QRESYNC to Thunderbird which currently 
>> only partially supports CONDSTORE which is disabled by default.
>>
>> The icloud server returns this subset of capabilities:
>> CONDSTORE ENABLE QRESYNC
>>
>> But when I try to enable them, I get no "ENABLED" untagged response:
>> imap.mail.me.com:A:SendData: 33 ENABLE CONDSTORE QRESYNC UTF8=ACCEPT
>> imap.mail.me.com:A:CreateNewLineFromSocket: 33 OK ENABLE completed
>>
>> If I ignore the lack of "* ENABLED CONDSTORE QRESYNC" and use QRESYNC 
>> in the SELECT, I get weird fetch responses with a -1 sequence.
>>
>> I don't know how or where to report this. A previous message on this 
>> list implied that the icloud server is from Oracle.
>>
>> -gene
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