The following packages are in a mess due to serious problems during
installation.  They must be reinstalled for them (and any packages
that depend on them) to function properly:
 courier-authdaemon   Courier Mail Server - Authentication daemon

The following packages have been unpacked but not yet configured.
They must be configured using dpkg --configure or the configure
menu option in dselect for them to work:
 courier-authlib-userdb userdb support for the Courier authentication library
 courier-base         Courier Mail Server - Base system