Cold emails are an absolute no-no in bulk email marketing, but in B2B sales they can be as much of a necessity as cold-calling, and when used correctly, are usually way more effective in opening doors.
Yesware, a tool that shows when your personal emails are opened and responded to in the same way as email marketing tools have done for years has come up with a great article to help more people get it right.
The 9 tips are backed up by significant research, and, even better, give examples of how to use each formula in real-life examples.
http://www.yesware.com/blog/cold-email/