To accomplish this, we set up a website popup that incentivized site visitors to provide their email address, then engaged them with a email series that helped customers get to know the brand, its offerings, and mission.
Over a 3-month period, this popup and automated email series added ~6500 new subscribers to the client's email list. During this period, the email series contributed to ~$20k in revenue for the client, and subsequent email campaigns to this warm audience continue to bring in revenue with every new campaign.