There’s no point in creating amazing emails if you have no mailing list to send them to. Before you start creating, start growing your mailing list. Make it as easy as possible for your users to sign up to your mailing list on your website or via social media.
The majority of your readers will see your email notification pop up on their smartphones, and that’s your window of opportunity. If they then go to open the email and they have to zoom in and out and have a bad experience, they’ll just unsubscribe and delete your emails. Make sure your emails are mobile responsive!