Are you curious about the results of your A/B test? Are there any areas you need to improve next time? View your mailing reports to optimize your marketing communications. To view the A/B testing report, you can view the mailing report of the mailing you have sent. In the menu next to the related mailing click on Report. With A/B testing, an additional tab will appear in the report. The first bar chart shows you the winner in the blink of an eye.