Adding to the conversation, here's a couple of mistakes that turned me off of submissions before (and 90% of submissions follow the pattern Alin said): -Using an editor name that doesn't correspond at all to the department (e.g., an editor who rarely reviews any nonfiction subs is not going to see your poetry) -using the wrong journal name -using no letter at all in your email submission, just a "Thanks" as if we should know who you are