+# Set up mail system.
+su plom -c 'mkdir -p /home/plom/mail/'
+su plom -c 'mkdir -p /home/plom/mail/inbox/{cur,new,tmp}'
+su plom -c 'mkdir -p /home/plom/mail/new_inbox/{cur,new,tmp}'
+sed -i 's/^delete = true$/delete = false/g' /home/plom/config/dotfiles/user/server/getmail/getmailrc
+DEBIAN_FRONTEND=noninteractive apt-get -y install getmail4 procmail mutt postfix maildrop
+cp config/systemfiles/main.cf /etc/postfix/main.cf
+cp config/systemfiles/aliases /etc/aliases
+newaliases
+service postfix restart
+
+# Set up regular system update reminder.
+apt-get -y install cron
+su plom -c "echo '0 18 * * 0 ~/config/bin/simplemail.sh ~/config/mails/update_reminder' | crontab -"
+
+# Set up screen/weechat/OTR/bitlbee. Make bitlbee listen only locally.
+apt-get -y install screen weechat-plugins python-potr bitlbee
+sed -i 's/^# DaemonInterface/DaemonInterface = 127.0.0.1 # DaemonInterface/' /etc/bitlbee/bitlbee.conf
+sedtest=`grep -E '^DaemonInterface = 127.0.0.1 #' /etc/bitlbee/bitlbee.conf | wc -l | cut -d ' ' -f 1`
+if [ 0 -eq $sedtest ]; then
+ false
+fi
+cp config/systemfiles/weechat.service /etc/systemd/system/weechat.service
+systemctl enable /etc/systemd/system/weechat.service
+