Changes
Typo "install install"
dpkg --purge exim4
apt-get install sudo libidn11 curl fetchmail \
libgmp3 libxml2 openssl libstdc++6
apt-get install perl perl-modules libexpat1 ssh file
</code>
For Debian 4 (etch) :
<code>
dpkg --purge exim4
apt-get install install sudo libidn11 curl fetchmail \
libgmp3c2 libxml2 openssl libstdc++6 libltdl3
apt-get install perl perl-modules libexpat1 ssh file