Did you know that Personalized subject lines are 22.2% more likely to be opened? 

Or that, by asking the right questions in your email subject line, you can appeal to your prospect's innate sense of curiosity.

But, that's not all. It turns out, you can invoke your prospect's FOMO even before they open your email - by referencing an upcoming event.

If nothing else works, then tickle your prospect's funny bone. Nothing gets a conversation rolling than plain, good, old humor.

Your email subject line holds the key to getting your emails opened. And if you can't get your emails opened, then you have lost the battle even before the first shot is fired.

In this article, we pulled together different techniques and over 60 different cold email subject lines - that can boost your the open rates of your email campaigns.