[imp] Problem purging mailbox with "uw-imap mix" format

[agustin at iuma.ulpgc.es]

Quoting Jan Schneider <jan at horde.org>:

> Zitat von Agustín Quintana Alfonso <agustin at iuma.ulpgc.es>:
>
>> English is not my native language; please excuse typing errors.
>>
>> We have this configuration:
>>
>> * Production environment
>>
>> Webmail server
>> --------------
>> OS: Fedora Core release 3
>> Webserver: Apache 2.0.53
>> PHP: 4.3.11
>> Horde (horde): 3.1.3
>> Mail (imp): 4.1.3
>>
>> IMAP server
>> -----------
>> IMAP server: UW-IMAP 2007e.404
>> Default mail folder format: mbx
>> The server supports the following IMAP capabilities:
>> IMAP4REV1 I18NLEVEL=1 LITERAL+ IDLE UIDPLUS NAMESPACE CHILDREN  
>> MAILBOX-REFERRALS BINARY UNSELECT ESEARCH WITHIN SCAN SORT  
>> THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND SASL-IR  
>> LOGIN-REFERRALS AUTH=PLAIN AUTH=LOGIN
>>
>> * Test environment
>>
>> Webmail server
>> --------------
>> OS: Ubuntu 10.04.3 LTS
>> Webserver: Apache 2.2.14
>> PHP: 5.3.2
>> Horde (horde): 4.0.10
>> Mail (imp): 5.0.14
>> Imapproxy: 1.2.6
>>
>> In order to improve performance, we convert some mailboxes to  
>> uw-imap "mix" format.
>>
>> The problem in test environment (traditional and dynamic mode): if  
>> we DISABLE "When deleting messages, move them to your Trash folder  
>> instead of marking them as deleted?" and we mark some messages for  
>> deletion, when we purge the mailbox ALL messages are deleted. This  
>> doesn't happen with mbx format.
>> No problem with other email clients: Thunderbird, Outlook,...
>> No problem with the production environment.
>>
>> Log example with mbx format in test environment (read mailbox, mark  
>> message for deletion, purge mailbox):
>>
>> ================================================================================
>> C: 2 SELECT entraba_mbx
>> S: * 3 EXISTS
>> S: * 0 RECENT
>> S: * OK [UIDVALIDITY 1320933381] UID validity status
>> S: * OK [UIDNEXT 99] Predicted next UID
>> S: * FLAGS (\Answered \Flagged \Deleted \Draft \Seen)
>> S: * OK [PERMANENTFLAGS (\* \Answered \Flagged \Deleted \Draft  
>> \Seen)] Permanent flags
>> S: 2 OK [READ-WRITE] SELECT completed
>> C: 3 UID EXPUNGE 1:*
>> S: * 2 EXPUNGE
>> S: * 2 EXISTS
>> S: * 0 RECENT
>
>> ================================================================================
>>
>> Log example with mix format in test environment (read mailbox, mark  
>> message for deletion, purge mailbox):
>>
>> ================================================================================
>> C: 2 SELECT entrada_mix
>> S: * 3 EXISTS
>> S: * 0 RECENT
>> S: * OK [UIDVALIDITY 1320933381] UID validity status
>> S: * OK [UIDNEXT 102] Predicted next UID
>> S: * FLAGS (\Answered \Flagged \Deleted \Draft \Seen)
>> S: * OK [PERMANENTFLAGS (\* \Answered \Flagged \Deleted \Draft  
>> \Seen)] Permanent flags
>> S: 2 OK [READ-WRITE] SELECT completed
>> C: 3 UID EXPUNGE 1:*
>> S: * 1 EXPUNGE
>> S: * 1 EXPUNGE
>> S: * 1 EXPUNGE
>> S: * 0 EXISTS
>> S: * 0 RECENT
>> S: 3 OK Expunged 3 messages
>
> IMP is sending exactly the same commands, so it's the server doing that.
>
> Jan.
>
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Sorry, if the problem is the UW-IMP server I don't understand why it  
doesn't happen with older IMP (4.1.3) and other email clients like  
Thunderbird. Only occur with the latest version of IMP. We ran tests  
with the same mailboxes, the only difference is the email client.

Thanks.