if  module_installed  fcron;  then
  fcrontab  -l  2>/dev/null  |
  grep  -v  exim             |
  fcrontab -    2>/dev/null
fi

if  module_installed  hc-cron;  then
  crontab   -l    |
  sed   -n  4~1p  |
  grep  -v  exim  |
  crontab -
fi
