- http://www.pearsoned.co.uk/bookshop/detail.asp?item=100000000015413 (link for the UK)
- http://www.addison-wesley.de/main/main.asp?page=englisch/bookdetails&productid=145891 (link for Germany)
You can order an “on demand” paper copy of this book.
I owe a paper copy of this book (I got mine through Amazon), and I would love to have a PDF available.
Yes, of course, there are a few manual pages for procmail etc., but this book still makes sense.