Segment List
Send a newsletter to a specific demographic
Schedule
Send newsletter later
Rich Text Editor
Write with bold, italic, and large text
Analytics
See amount of opens and rejects
One-time mailing
Send an email for, for example, a birthday
Sequence mailing
Send a series of emails with some delay
Templates
Write your own templates with code
Custom Fields
Choose custom fields to onboard users
AWS
Use Amazon's cheap services
Sub-Accounts
Allow to invite a client/user to a specific list
Multiple Admins
Allows multiple people to access the account
API
Allows to automate/access data from other services
Visual Editor
Allows to compose and design emails
Docker
Has an official Docker available
Ruby on Rails
Written in Ruby