emaint --check world
Checking world for problems
'mail-filter/spamassassin' is not installed
'sys-process/vixie-cron' is not installed
'x11-libs/cairo' is not installed
'app-crypt/truecrypt' is not installed
'app-dicts/ispell-de' is not installed
'mail-client/squirrelmail' is not installed
'net-misc/openntpd' is not installed
'net-p2p/rtorrent' is not installed
'net-p2p/amule' is not installed
'app-admin/eselect' is not installed
'sys-kernel/vanilla-sources' is not installed
'mail-filter/bogofilter' is not installed
'sys-apps/xinetd' is not installed
'mail-mta/postfix' is not installed
'net-fs/samba' is not installed
'net-ftp/vsftpd' is not installed
'net-misc/netkit-telnetd' is not installed
'sys-apps/lm_sensors' is not installed
'sys-boot/grub' is not installed
'www-servers/lighttpd' is not installed
'sys-apps/iproute2' is not installed
'app-text/ispell' is not installed
'app-admin/syslog-ng' is not installed
'net-mail/fetchmail' is not installed
'app-misc/lcdproc' is not installed
'net-fs/nfs-utils' is not installed
'app-admin/logrotate' is not installed
'net-mail/dovecot' is not installed
'net-firewall/iptables' is not installed
'mail-filter/procmail' is not installed
'app-misc/screen' is not installed
'dev-php5/eaccelerator' is not installed
Finished