IMAPD Server

Good Day, Please excuse question but I cannot seem to find anything that specifically tells me what IMAPD server I have installed on my SUSe 9.0 Is it Cyrus? What I want to do is set-up a set of shared folders where users can drop mis-labeled ham/spam for SA-LEARN. So in addition to knowing exactly what IMAP server I have, any pointers to Tutorials on Shared IMAP folders would be well recieved. Thanks, JP