Many third-party email services, such as the ones mentioned above, include preflight testing tools. (It’s a best practice to test each email before sending as well.) To ensure optimum usability test your email template on multiple devices before sending out to your entire subscription list. Users may also hop between desktop and mobile devices and your emails need to work whenever (and wherever) they are opened. With most people accessing email on a mobile device, it is more important than ever that your email template is responsive. Check with that provider to see if you have to use one of their templates, can upload one from somewhere else, or code your own. You need to start with an email template that will work on the platform of your choice. What platform do you already use (or do you plan to use)? MailChimp, Campaign Monitor, and Constant Contact are among the most popular platforms and all have different pros and cons, depending on your email newsletter needs.
Think about how you plan to send the email.
There are a lot of things to think about when choosing an email template, from the design of the email to your specific sending needs to the platform you plan to use.