How to configure SCO OpenServer 5.0.7 mail system MMDF

Hello unix experts,

Here I have couple of questions regarding MMDF mail system on SCO unix:

  1. How can I configure SCO OpenServer 5.0.7 mail system MMDF to
    send emails using "mail" command to other machines in the same LAN?

  2. How can I configure SCO OpenServer 5.0.7 mail system MMDF to
    send emails using "mail" command to Internet - outside the LAN?

  3. How can I send emails with attachements using "mail"?

Thank you for your help in advance!

Read the info on MMDF (search with "mmdf" to get to the MMDF section).