server:~# dpkg-reconfigure exim
 System startup links for /etc/init.d/exim already exist.
mkdir: cannot create directory `usage': File exists
server:~# apt-cache policy exim
exim:
  Installed: 4.62-1
  Candidate: 4.62-1
  Version table:
 *** 4.62-1 0
        100 /var/lib/dpkg/status
     3.36-18.2 0
        500 http://debian.cn99.com etch/main Packages
server:~#