Keen Mail Keen mail is a great idea from the folks at keen; if you would rather correspond by email, you can just send me your questions, and I will respond with a "paid keen mail". This just means that as soon as you open your keen mail, your account will be credited for the specified amount on the email! Just remember that when you email with your problem/question that you should also state that you would like a paid keen mail response. Sometimes this is more economical than calling, but it really depends on your question/problem. Keen mail rates: