root@touki:/home/touki/Bureau# apt-cache policy icedove
icedove:
  Installed : 3.1.16-1~bpo60+1
  Candidate : 10.0.9-1~bpo60+1
 Table de version :
     10.0.9-1~bpo60+1 0
        500 http://mozilla.debian.net/ squeeze-backports/icedove-esr i386 Packages
 *** 3.1.16-1~bpo60+1 0
        100 http://backports.debian.org/debian-backports/ squeeze-backports/main i386 Packages
        100 /var/lib/dpkg/status
     3.0.11-1+squeeze13 0
        500 http://security.debian.org/ squeeze/updates/main i386 Packages
     3.0.11-1+squeeze12 0
        500 http://ftp.belnet.be/debian/ squeeze/main i386 Packages
        500 http://ftp.us.debian.org/debian/ squeeze/main i386 Packages