Is that a normal HFS+ filesystem?
Yup.
Anything special done to it?
Nope.
With case-insensitive filenames?
Yup.
Have you tried my imaptest tool (http://imapwiki.org/ImapTest) to see if it gives errors?
I'll try that soon and let you know.
BTW. Is there some really easy way to get those Net::IMAP::Simple etc.Perl packages installed? I'm now running the Perl script from a separateLinux machine over WLAN..
cpan(1)