gistfile1.pp

include collectd
include collectd::plugin::tail

collectd::plugin::tail::fragment { '/var/log/exim4/mainlog':
  instance => "exim",
  matches  => [
  {
    regex    => "S=([1-9][0-9]*)",
    dstype   => "CounterAdd",
    type     => "ipt_bytes",
    instance =>"total",
  },
  {
    regex    => "\\<R=local_user\\>",
    dstype   => "CounterInc",
    type     => "counter",
    instance =>"local_user",
  }
}