Version:            (using KDE KDE 3.5.1)
Installed from:    Slackware Packages
OS:                Linux

I'd like KMail to handle local folders for pop3 accounts separated from each other (like Moz TBird, Sylpheed and others do).
Example: I have three pop3 accounts, joe@foo.net, jack@foo.net and jim@bar.org.
Setting up KMail I name these accounts joe-foo, jack-foo and jim-bar.

Should be stored on disk like this:

~/.kmail
|-joe-foo
|  |-inbox
|  |    |-my_folder_1
|  |    |-my_folder_2
|  |    |-my_folder_3
|  |-sent
|  |-trash
|  |-templates
|
|-jack-foo
|  |-inbox
|  |    |-my_folder_1
|  |    |-my_folder_2
|  |    |-my_folder_3
|  |-sent
|  |-trash
|  |-templates
|
|-jack-bar
|  |-inbox
|  |    |-my_folder_1
|  |    |-my_folder_2
|  |    |-my_folder_3
|  |-sent
|  |-trash
|  |-templates
|

_AND_ - (the important part) this is how the tree box in KMAil itself should be arranged, too - one top level folder named by the account name I gave with their separate inbox, sent, trash, template.

I'm surpsrised people haven't been asking for this more - imagine you run a company. Do you want the postman to cram your private mail into your company's mailbox? I don't think so. Even when my bureau is in my private residence, I want my mail neatly sorted by recipient and not in one big wad so it's up to me to tell them apart. 

I know I set up filters to immitate this functionality, but this is an ugly hack on user level, not by system.

I gimped up a screenshot to show how I imagine it:
http://www.vaultofsages.de/~dexterf/pub/kmail2.png