A/B testing, or split testing, involves sending two versions of an email to small portions of your audience to see which one performs better. This can be applied to various elements such as:
1. Subject Lines: Testing different subject lines to see which one has a higher open rate. 2. Email Copy: Experimenting with different styles, lengths, and formats of email content. 3. CTAs: Trying out different calls-to-action to see which one gets more clicks.
The results from A/B testing can provide valuable insights that help you refine your email marketing strategy.