What resonates well with your potential clients? Maybe you have concrete answers to this question because you’ve surveyed them, but part of being a good marketer is understanding what your target audience responds to best, whether they say it verbally or not. Anything that you have learned about your clients can be valuable, whether it’s old or new information. Take a look at your previous email campaigns and note those subject lines which performed well and see if you can take note any patterns. In the same vein, conduct A/B testing with subject lines to see which see which subject lines for your new email campaign will receive more positive attention. A/B testing can provide valuable insight into what your prospects really respond to in their inboxes.