An attractive pricing system
"The responsive editor is really nice, and gets better every year. The team really listens to suggestions, and several useful features have been added since I started using Sendinblue (almost four years ago now). I used to send newsletters to a database of over 50,000 customers using the paid version of Sendinblue, and it cost far less that the other solutions available. Now I use it for a much smaller database and the free version easily meets my needs."