Ummm, can you please let us know what about this script doesn't work. Postfix comes with a program aptly named "sendmail" that functions like the "real" sendmail. (Do a 'man sendmail' on your computer.) If $mailprog is the path to sendmail, things should just work. You can find the path to sendmail on some systems with 'locate'. If you don't have that, try 'which'. Failing that try 'find'.

HTH, --traveler