[Tickets #8624] IMAP connection broken when delete large size of email

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Ticket URL: http://bugs.horde.org/ticket/8624
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  Ticket             | 8624
  Created By         | jackyc at wkg1.umac.mo
  Summary            | IMAP connection broken when delete large size of email
  Queue              | IMP
  Version            | 4.3.4
  Type               | Bug
  State              | Unconfirmed
  Priority           | 3. High
  Milestone          |
  Patch              |
  Owners             |
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jackyc at wkg1.umac.mo (2009-10-05 04:19) wrote:

I found recently the IMP gives me this "[CLOSED] IMAP connection  
broken (server response)" error message when deleting large size of  
emails, says around 10MB. This message comes up around 3~4 mins later,  
and I need to click Inbox to go back. Both the Inbox and the trash box  
shows up the message just intended to delete.

  I found the error message comes out from IMAP/Cache.php line 195. It  
intends to check the IMAP connection cache status. The IMP Horde  
version is 3.3.4. I am running dovecot as IMAP daemon and imap-2007e C  
library.

Besides IMP, pine, mailx and other client programs are provided to the  
users. The problem only occurs when using IMP, pine, mailx and other  
programs are fine to delete even large size of emails. Does anyone has  
idea about this issue? it is likely a bug and something else?