To make the examples on your screen match those in this book, we have elected to use V8 sendmail for the rest of this tutorial. If you are already running the latest release of V8 sendmail , you may skip this chapter.  Otherwise, you will need to get and compile V8. In this chapter we show you how to do just that. But don't worry. We don't intend to show you how to do a full installation. All you need is a runnable sendmail binary, and compiling one is generally pretty easy.
Its distribution consists of two forms of tar (1) files, one compacted with compress (1) and the other with gzip (1):
sendmail.*.tar.Z compressed source tar sendmail.*.tar.gz gzipped source tar
Once successfully unpacked, you'll find a new subdirectory
in the current directory. It has the same name as the source
distribution, but with the
Here, sendmail-8.8.4 is the directory that contains the source and documentation for sendmail . Change into that directory and look at its contents: