How can I let Cyrus ignore the case of mailbox ? I mean ,I want Cyrus treating the upper case's mailbox and lower case's mailbox as the same recipient if their spelling are same. Any advise would be appreciated.
Another way of getting around this is to have your MTA rewrite the address to all lowercase. I use postfix and have a regular expression virtual_maps file to do this:
in /etc/postfix/main.cf: virtual_maps = regexp:/etc/postfix/virtual_regexp
in /etc/postfix/virtual_regexp: /^([EMAIL PROTECTED])$/ $1
This will take any username and change it to lowercase before handing it to cyrus. I'm sure other MTAs can do similar things, so it may be an option for you. Good luck.
///Jason