For our Newsletter at TiliShop, I've been looking into existing hosted newsletter platforms. After researching about a dozen, I've selected the following three :
In the end, we went with Buttondown. It's lightweight, easy to use and easy to integrate. There is a chance we may need something more sophisticated next year. But for now, it serves our needs.
What do you use? Have you migrated from one to another at some point? And if so, why?