To build and setup PTmail:

1. edit the USERDEF.H for site-dependant entries. (eg SMTP% for mailer?)
2. Run the build program by typing: @BUILD.COM
3. Edit the PTMAIL_INIT.COM file and change the directory LOGICAL to suit.

If System-Wide use:
1. add an entry to the system SYSTARTUP.COM to run PTMAIL_INIT at boot.
2. add a symbol to the system SYLOGIN.COM to point 'ELM' or whatever at 
   PTMAILER_DIR:PTMAIL.COM

If personal use:
1. modify the PTMAIL_INIT so that the DEFINE is just local, not /SYSTEM.
2. add an entry to your LOGIN.COM to run PTMAIL_INIT at login.
3. add a symbol to your LOGIN.COM to point 'ELM' or whatever at
   PTMAILER_DIR:PTMAIL.COM

