Install Courier-IMAP

IMPORTANT :
we need to su to normal user without root access in order to install courier imap

Example :
We will using "example" user

Extract Courier-IMAP

#cd /root/postfixrocks
#tar -xjf courier-imap-4.7.0.tar.bz2
#cd courier-imap-4.7.0
#mv courier-imap-4.7.0 /home/example/
#chown -R example:example /home/example

Change to example user

#su example

Configure Courier-IMAP

#cd /home/example/courier-imap-4.7.0
#./configure --prefix=/usr/local/courier
#make
#exit

Now we are using root access again

#cd /home/example/courier-imap-4.7.0
#make install
#make install-configure

Create imapd Certificate

#cd /usr/local/courier/share/
#./mkimapdcert