Wondering how to increase your email response rates?

Here’s the #1 tip:

Shorten your subject line!

There’s been a lot of buzz about Return Path’s recent analysis on email click-through rates.  Using data from two years’ worth of client campaigns, here’s their discovery:

• Subject lines with fewer than 50 characters generated a 75% higher click-through rate than subject lines with 50 characters or more.

(In case you’re wondering, spaces count.)

What a great incentive to be brief!

Courtesy of Return Path’s Ed Taussig and Eunhee Lee and Tamara Gielen from Email Marketing Best Practices.