[imp] More Traffic than Required in IMP?

[Nate]

Quoting Christoph Kaser <christoph at kaser.ch>:

> Hello Folks!
> 
> By Observing the Logs from my POP3-Mailserver, i've noticed, that IMP
> everytime Receives all Mails in Mailbox, even he has only do Display the
> first 20 Messages (...or Message 21-40, or Message 41-60).
> 
> If you click 'next page' on Webmail, imp will receive the whole mailbox
> again. I think it's a massive Speed Brake for IMP, hardest case is: 1000
> Mails in a Mailbox out of LAN, then you have to wait, depending on the
> speed
> of the Internet-Connection, up to 3 Minutes to display one Page!
> 
> Is there a Configuration Flag to solve up this Problem?
> 
> Sorry for the Bad english expression, hope you unterstand me!

Pop is limited it what it can handle.  Imap would probably be a more efficient
solution.  The other problem I see is that just getting the first 20 messages
from the server would be fine, If your Inbox is using the incoming # ordering. 
If it's in order by date, subject, from or size IMP needs to look at all the
mail to decide what order it goes in(which e-mails are the first 20).  1000
emails in the INBOX, thats a user training issue IMHO.
Nate


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