[Evolution] IP lookup bug?

[Roland Orre <orre bacon su se>]

There seems to be a bug in the connection scheme in evolution.

I move daily between my office and home, and almost every day
when I'm coming to the office the connection (by clicking the
connection symbol) to my company server fails.

I've tried to look this up among known bugs, but I've not been
able to find anything. I haven't upgraded for a while, because
I want to wait until I'm sure this is resolved (still running 1.4.6).

Some years ago I run the Mozilla imap-client instead, and that
one did not have this kind of problem, even though I couldn't
disconnect it either.

At this precise moment I first tried:
telnet pop.neurologic.se imap

Trying 195.47.247.30...
Connected to mail2.b-one.net.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE
THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION]
Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc.  See
COPYING for distribution information.
Connection closed by foreign host.

which worked well, but when I try to connect with evolution I get:

Error while 'Scanning folders in "IMAP server pop.neurologic.se"':
Host lookup failed: unknown reason

To get this to work I have to exit from evolution and restart it.

Could this be a timeout problem? (but I almost never get this problem
when I'm coming home). It would in that case be preferrable with
an adjustable timeout. But my gut feeling is that when the connection
is closed, i.e. clicking on the connection symbol, still some
information about the connection is saved, causing it to fail.
It is only this server it fails on though, not the others.

        Best regards
        Roland Orre