Exim logging

src/freedombone-logging

       sed -i 's|info = "/dev/null";|info = "/var/log/prosody/prosody.log";|g' /etc/prosofy/prosody.cfg.lua
       sed -i 's|error = "/dev/null";|error = "/var/log/prosody/prosody.err";|g' /etc/prosofy/prosody.cfg.lua
   fi
+  if [ -d /etc/exim4 ]; then
+      sed -i 's|log_selector =.*|log_selector = MAIN_LOG_SELECTOR|g' /etc/exim4/conf.d/main/90_exim4-config_log_selector
+  fi
 else
   if [ -d /etc/nginx ]; then
       for filename in /etc/nginx/sites-available/* ; do
       sed -i 's|info = "/var/log/prosody/prosody.log";|info = "/dev/null";|g' /etc/prosofy/prosody.cfg.lua
       sed -i 's|error = "/var/log/prosody/prosody.err";|error = "/dev/null";|g' /etc/prosofy/prosody.cfg.lua
   fi
+  if [ -d /etc/exim4 ]; then
+      sed -i 's|log_selector =.*|log_selector = -all|g' /etc/exim4/conf.d/main/90_exim4-config_log_selector
+  fi
 fi
 
 if [ -d /etc/nginx ]; then