Gettng your emails to look good on different devices can be a pain. Here's how we do it.
CiviMail - part of CiviCRM - is great for sending out email newsletters that people can subscribe to. It keeps your data in one place, and you can look at who gets it, what they click on and get a really good picture of user engagement.
The downside is that creating the emails is finicky. You need to get a responsive template in place and then you need to use it and edit it for every email. It takes a great deal of time and skill to create a great looking email.