According to a report from MailerMailer, the top ten terms used by email marketers in subject lines are: 10) week 9) holiday 8) update 7) com 6) sale 5) night 4) free 3) newsletter 2) party 1) newsIn addition to the top ten most popular keywords, the report reveals the best and worst performing industries, and lots of interesting email metric information. For example, the return […]