and also avoid using spam keywords which just annoyes people and make them just feel like deleting the email without even opening it.

i am currently analyzing the subject lines that sounds like "Free Gift,download your free product".

i know well known marketers do says "Free" is a powerful word to use but if you are intermediate marketers occasionally it just annoying because when you click on the free gift offer it just turn out to be some junk Resale Rights products they are sending to you.

any more opinions on this?