Use script to send mail to Notes Server

I’m thinking of creating a script to collect my daily db export status from my HPUX and send to NT Notes Mail server.

My NT Notes Mail server has access control such that it needs to following fields. How should I setup as mail client over my HPUX.
+ sender ( where to set the HPUX to identify itself as sender)
+ Mail Server ( where to configure the mail srver? (/etc/mail/mailserv?)

Do I have to setup other things as well for the HPUX as mail client?