The Roles of sendmail
When your machine boots, it executes the commands in one or more
Bourne shell scripts. Examine the script that runs the
program in daemon mode. Write a small Bourne shell script that
checks for the existence of the
(1) program and then
executes that program. Model it around the way
For each program that is mentioned in your configuration file's
read the appropriate online manual page.
Examine the possible command-line arguments to determine how
envelope information is passed. Compare what you discover to
part of each corresponding
Locate all the files mentioned in
lines in your configuration
file. For any that exist, what kind of file is it: data or text?
If it is text, read it. What purpose do you suppose it has?