Can we target former customers by their email address?

Can we target former customers by their email address?

Yes, because it’s five times more expensive to acquire a new customer than to keep an existing one.

Email address can now be used to target previous customers and (opted in) contacts through the use of ads and custom audiences. In an age of dropping deliverability rates and low click-through rates paying to reach these customers via ads has evolved into a go-to option for many marketers.