Building subscriber lists is a common need for email marketers. The important thing to remember with this objective is that your email marketing should be focused on quality and not quantity. Because you could gain an additional 1,000 subscribers but they aren’t really interested in your brand and are therefore not going to add much value to your email database or your business.
Be clear about what people can get and how to get it. This is the backbone of this email marketing strategy. Tell people about the benefits they can get. Write a separate email about each major benefit, if you want. Make sure those benefits come out clearly. But also keep it conversational. Don’t just list a bunch of benefits and expect people to buy. Also, remember to be clear about what they need to do to get those benefits. Tell them to “click here” or “apply for a consultation.” Don’t force people to think about how to move forward. It’s not that they couldn’t figure it out. It’s just unnecessary (and therefor annoying) when you could make it easy for them.
High reach: When people join your email list (subscribe or “opt in”), you can reach them. If they just like your Facebook page, for example, it’s unlikely that they’d see many of your updates. Sure, not everyone opens your emails, but the numbers are heavily in favor of email marketing compared to other similar marketing tactics. I’d rather get 1,000 new email subscribers than 10,000 Twitter followers.
To make sure you're only sending emails to the people who want to read them, clean up your email list so that it excludes recipients who haven't opened a certain amount of emails in the campaign's recent history. This makes sure your emails' open and clickthrough rates reflect only your most interested readers, allowing you to collect more effective data on what is and isn't working in each email you send.