Re: performance issues that seemingly can not be solved.

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Scott Haneda wrote:
> Hello, I am running SquirrelMail 1.4.16, against EIMS Mail Server  
> which support IMAP.
>
> SquirrelMail is very slow at loading mailboxes.  EIMS stores mail in a  
> single file, like UW IMAP server.  If I telnet into the server, and  
> select a mailbox, one in which I feel it is not that large, perhaps  
> 3000 messages, I can get back a message count in under 3 seconds.
>   
3 seconds just to tell you how many messages there are.  Now imagine how
long it takes to fetch headers.

> I have spoken with the developer, and he states that even though EIMS  
> does not support sort and thread, that should have no impact on  
> performance, and in fact it could slow it down.
>   
Server-side sort is a huge win for webmail. On large mailboxes, it is
pretty much a requirement.

> What is the trick to speed up web email?  Or, can anyone give me any  
> insight as to what my email server is doing wrong.  Can someone give  
> me some rough select times on mailboxes that have a lot of messages in  
> them as well?
>   
I have 2651 messages in a folder using Cyrus IMAP.  SELECT returns
instantly, the second I hit enter.  Migrate to another IMAP server. I
recommend Cyrus or Courier, although I also hear good things about dovecot.

Chris

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