I am using Postfix as my SMTP server and have it dumping its mail in Maildir format into /var/spool/mail/$USERNAME/Maildir and all is good in that regards, however I am having trouble working out how to configure Courier-imap to look in this directory for its mail instead of /home/$USERNAME/Maildir . It is fairly important that I keep these two things seperate due to a number of other factors out of my control. Can anybody point me in the right direction here? I have looked through the conf files in /usr/lib/courier-imap/etc but haven't seen anything that looks promising to me.