please recommend sendmail references/books

[Don]

I'm trying to set up sendmail so I can receive e-mail directly, in
addition to using my isp supplied e-mail.

My biggest concern is that I don't want people on the internet to be
able to use my smtp server as a means to send mail to people with the
result making it look like it me... I think that's called "relaying"...

Anyway... can anybody recommend any good books on setting up sendmail?

Thanks,
Don