Re: Looking for imap server that does not mark new mails as old

[othyro%safetymail.info@localhost]

This is not an issue with your IMAP server (that i know of - it has been a
long, long time since i switched from IMAP-UW, so maybe IMAP-UW is also
broken...), but a known issue with mutt (apparently, mutt does it with mbox
too):

http://sourceforge.net/mailarchive/message.php?msg_id=28190829

If you want to prove this to yourself, send yourself a message in mutt, exit
mutt before seeing your inbox with the new message, reopen mutt and see the
message flagged as new unread (N), exit the client without viewing the
message, and reopen mutt to see the message flagged as old new unread (O).
Delete the message, repeat the same process with PINE, and see no change in the 
message flags.

Now, if you do want a better IMAP(S) server, i highly recommend courier-imap,
although it uses Maildir, which is arguably a better format than mbox. It stores
messages in individual files rather than one big honking file. There are 
scripts available to convert your mbox to Maildir format.