I’ve tested the Welcome Mat and Smart Bar apps as well but they didn’t produce anywhere near the conversion rate of the List Builder and Scrollbox apps (note: that doesn’t mean you shouldn’t test them on your site… it’s just that they didn’t perform that well on our site with the setup we used so we removed them so not to distract the visitor too much while we figure out new ways to test them).
A suggestion? Include a newsletter opt-in check box directly on your retargeting message or if you are capturing sales leads, be sure to remind your sales team to ask the prospect if they wish to sign up to the company newsletter before adding them to your organisation’s marketing list. Last but not least, always remember to have your data privacy link readily available on your main website.
Use a reactivation campaign to gauge whether non-responsive subscribers are still reading (just not clicking through or tracking open rates), or if they’ve truly decided to opt out. An example from MarketingProfs is shown here. The language you choose can play a big role in how successful these campaigns are, so be sure to split-test a few versions to maximize response.
Visitors to your website might overlook the call to sign up that you have at the top of every page, but it’s harder to ignore a lightbox or pop-up. Scroll boxes pop up on visitors’ screens after they’ve scrolled down a certain length of the page. The box encourages them to sign up for your email list. They can be effective for encouraging a user who’s already shown interest in your content (by staying on the page long enough to scroll) to sign up for your email list.
Many marketers are afraid of screwing up, and they let “send fear” take over. It’s important to try personalization beyond just using first names in the body or subject line of the message and have the confidence to test personalization for your brand. If you’re skeptical, use A/B tests to figure out if personalization resonates with your lists. Make sure all fields are mapped to the right things, so that when your campaign goes out, everything appears correctly.
As for social media, it has been a powerful marketing tool for me because I intend to connect with as many people as possible. People know people, and if you develop a caring connection with someone you leverage your presence like no other practice. The key is to make things personal, not business. Reverse the famous Godfather quote and you’re good to go.

For effective and actionable results, you should do A/B tests, which test two (or more) different approaches. For example, you could send half of your list one subject line, and an alternate subject line to the other half. You could also A/B test the two approaches with a small subset of your list, then send the winning headline to the rest of the list.