[horde] Problem of slow with server-side sorting

[gimili]

Andrew Morgan wrote:
> On Mon, 1 Jun 2009, Jose Luis Marin Perez wrote:
>
>> So what could happen? because the accounts that actually have too 
>> many emails it takes more than 2 minutes to load this show.
>>
>>
>> Please I need your help to solve this problem
>> Thank you
>>
>> Jolumape
>
> Do those users have Options -> Mail -> Mailbox and Folder Display 
> Options -> Default sorting criteria set to "Arrival Time"?  This 
> should be the lowest impact on the IMAP server.  Anything that causes 
> IMP to retrieve message headers or bodies will cause the problems you 
> describe as mailboxes grow large.
>
>     Andy
> -- 
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I inadvertently switched away from "Arrival Time" and imp became 
**very** slow.  It took me awhile to figure out what I had done.  IMHO 
there should be a big warning next to this option about the possible 
effect on performance.  Perhaps consideration should be given to having 
it locked by default in prefs.php.