How can I process my mail on my Unix machine?

How can I process my mail on my Unix machine?

Every header of a Pinjo revealer checked message, contains a header variable which indicates whether the message is detected as spam or not.

After checking a message, Pinjo revealer add a headerline to your mailmessage which contains the status of the message.
If Pinjo revealer suspects the message is spam then the following header is added:

X-Spam-Status: Positive

If Pinjo revealer suspects the message is  no spam then the following header is added:

X-Spam-Status: Negative

Some mailserver can do additional tasks by triggering on certain headers. Also procmail on Unix-like machines is able to process the message and eg.optionally put it in an other folder for you.