How Can Marketers Optimize Email Subject-Line Performance?

Think of a subject line as your outer envelope. If you don't entice your reader inside, they'll never see your pitch, so your chances of generating a brand new lead or sale are zilch.

Remember, every 1% boost in open rate brings you more prospects and customers—and will pay you more net dollars.

So consider spending at least as much time on your subject-line testing as you do on pricing or offers. It helps that subject-line testing is cheap, easy and hassle-free. Here are a few ways to get started: ...