Articles Email Marketing for business

I require 30 (THIRTY) articles on Email Marketing.I will supply Keywords that articles need to be written on. 30 articles for each topic. If i find someone i like at the right price this might become a regular order. Here are the keywords: email marketing, email marketing software, bulk email, bulk email software, newsletter software, mass email, bulk email marketing,bulk emailer,free bulk email Articles need to be minimum of 400 words. I do not accept articles that use excessive keywords or phrases. Make sure the keyword in the articles is not shown more than once per 100 words of the article body. Make sure that each article have a title and not just the keyword as the title. Make sure the article is not a duplicate, i.e. I only accept original unique articles as I'll be submitting this articles to article directories. All articles must pass CopyScape!