Discover the 14 Email Marketing Services That Could Transform Your 2026 Strategy Overnight
A/B testing
If you want to drive the best possible results from your email campaigns, you need to constantly test, refine, and hone your email marketing strategy. And the best way to do that is by running A/B testing campaigns.
Many email marketing service providers will give you access to A/B testing (or split testing) tools that you can use to compare two variations of your emails and see which one performs the best.
For example, you might create two versions of the same email with a different subject line. Each variation can then be sent out to a portion of your subscribers. 50% of recipients might receive email A, and the other 50% email B.
