root@fonzie:~# aptitude -t etch-backports install spamassassin
Reading package lists... Done
Building dependency tree... Done
Reading extended state information
Initializing package states... Done
Building tag database... Done
The following packages have been kept back:
  base-files libapache2-mod-jk libltdl3 libmysqlclient15-dev libmysqlclient15off linux-image-2.6-amd64 mysql-client-5.0 mysql-common mysql-server mysql-server-5.0 nmap postgresql postgresql-client spamc
  vim vim-common vim-runtime
The following packages will be upgraded:
  spamassassin
The following packages are RECOMMENDED but will NOT be installed:
  libsys-syslog-perl re2c
1 packages upgraded, 0 newly installed, 0 to remove and 17 not upgraded.
Need to get 1058kB of archives. After unpacking 348kB will be used.
Do you want to continue? [Y/n/?] n
Abort.