When Joseph Flaherty used to write for Wired, a cold email was the lowest probability way to get press, but it still worked with some regularity. Cold emailing a VC is a similarly low-percentage play, and many of the best VCs in the world advise against the practice. Still, it does work from time to time.
A cold email to Chris Sacca scored one founder an internship and launched a startup. Mark Cuban funded Box based on an unsolicited email. Joseph is not even an investor, but entrepreneurs could improve their (low) odds in the “cold channel” if they honed their pitch with an understanding of just how much email a VC has to process.