#### 3.12.2 Using `mda` with Exim. ¶

Using `mda` with Exim is quite straightforward. The following example illustrates the definition of the appropriate transport and director in `exim.conf`:

    # transport
    mda_pipe:
      driver = pipe
      command = /usr/local/sbin/mda $local_part
      return_path_add
      delivery_date_add
      envelope_to_add

    # director
    mda:
      driver = localuser
      transport = mda_pipe