Email marketing can be used for all stages of the customer life cycle: building familiarity with prospects, acquiring customers, and retaining the customers you already have.
One of email’s strengths is that it is a way to get feedback from your customers. Allow them to reply with their questions or problems.
For finding customers
Traction channels like SEO and content marketing can help you build your email list. Ask for an email address in exchange to access premium content, a free course related to your area of expertise, a whitepaper, or a video.
Consider advertising on email newsletters complementary to your product.