Whether you’re starting from scratch or have been building your email list for years, you know it’s important to actively promote your email list and encourage your existing contacts to engage with your organization.After all, a dedicated email list can have serious payoffs for your nonprofit — including everything from better event attendance to increased web traffic and larger donations at your next fundraiser.The key to successful email list is to see your contacts as people. Grow your list — one name at a time— and once they’ve subscribed provide them with a quality experience, just as you would in-person.Here are 4 tips for growing and sustaining your email list:1. Choose a reliable email providerThe first step of building a loyal email list is making sure you have a safe place to store your contacts’ information and an easy way to send them mailings.If you’re just getting started, take a look at what other organizations are using, and think about what kind of tools and features will be important for your organization. Will you need access to reports to see how your emails are performing? What about support to help with any technical questions you have?You may also want to think about what solutions work with products you are already using. Constant Contact easily integrates with Network for Good so that you can launch campaigns, organize contacts, and manage your campaigns from a central location.2. Make sign-up simpleMost people aren’t going to seek out your mailing list on their own; it’s up to you to encourage them to sign up and make it easy for them to do so.Here’s a great example of a website sign-up form from Canadian nonprofit, The Local Good. Not only do they make sign-up super simple, they also provide a useful description of what their newsletter will include and how often they send.Subscribers will be more likely to sign up if they know what to expect from you.There are also handy tools you can use so that subscribers can sign up on social media or even through a mobile device.3. Deliver a personal experienceBuilding a list is half the challenge, sustaining that relationship is just as important. To build long-lasting relationships with your subscribers, you’re going to have to think beyond your organization and think about how you can deliver a great experience for your contacts.Start by answering a few questions like:Who are your contacts?What are they interested in?How often do they want to hear from you?The more information you can collect and store about your contacts the better. For example, if you collect email addresses at an event, make note of that so you can reach out to them with a targeted follow-up soon after.The timing of your emails is important — you want to make a good first impression on new contacts so that they read your future messages. You can also use this information to reach out to them if you are holding a similar event in the future.4. Don’t send carelesslyThis includes sending with a set schedule and goal in mind, but also checking back in to see how each mailing performed, and making changes when necessary. Using email reports, you have access to important information like open and click-through rates, which will show you what messages are attracting interest and getting your readers to interact with your content.You don’t want your email marketing strategy to become static. Spend some time thinking about little tweaks you can try. What happens to your open rate if you ask a question in your subject line? Does your click-through rate increase if you link to a YouTube video?Seeing what works best for your audience will ensure you are getting the return on investment you’re looking for from email marketing. Taking a few extra minutes to try something new could mean reengaging contacts that have fallen out of touch.