Description of Problem:
kmail attempts to read in the entire home directory contents when using imap to
a RHL 7.3 mail server.  If there is for example, a few thousand files in the
home directory (e.g. in ~/export there exists a RHL tree, kmail will take a long
time seemingly stalled, before then displaying hundreds of KNotify messages:

"""
Cannot Open file
<blah>

Too many open files.
"""

Given the hundreds of windows that try to appear, X invariably freezes.  Anybody
w/ a large home directory may see this problem - and this must be v.frustrating.

Version-Release number of selected component (if applicable):
Seen in KDE 3.0.0 and 3.0.1.

How Reproducible:
Consistent, even on different machines.

Steps to Reproduce:
1. add a few thousand files into a directory just off ~
2. start kmail for first time and configure imap e-mail.
3. allow kmail to check imap mail and folders for first time.

Actual Results:
kmail and the entire X session basically die.

Expected Results:
kmail should read what it can, potentially not even try to explore directories
until you expand them!  Knotify should certainly not report hundreds of
individual errors.

Additional Information: