Suse email manual

Poking about on the suse ftp site I spotted their email server directories and within that was a .pdf manual about running their email server which looked very useful. Is the email server on this product basically cyrus IMAP? If so, how much is the manual a manual for cyrus that could be used as it looked a lot better than the various howtos I've seen about (which basically I can't understand enough to do something useful with. But then perhaps I'm just being thick)? As the needs aren't great, have the put the older versions of their emailserver on the ftp site complete so they can be downloaded? I couldn't make out if the earlier version directories were functional or just a collection of patches.