I've been getting a lot of spam on my server so I want to install SpamAssasin, but I can't seem to get Procmail to work. I have Ensim and use Sendmail.

I added Procmail to smrsh which took care of the problem I was having getting emails returned when testing that said:

smrsh: IFS=' not available for sendmail programs (stat failed)
554 5.0.0 Service unavailable

I've tried a hundred things it seems. Here are the questions I now have.

Where does the .procmailrc file go if I want to filter email for a single email address?

What should the permissions and ownership on this file be?

What is an example .procmail file that will copy all messages from a particular email to another address (personally I think this would be the easiest way for me to tell if it works)?

How do I know what paths to use in the configuration of the .procmailrc file?

Thanks so much!