ReadNotify - ReadNotify enables the user to know when email is sent and the reciever reads the email.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Intelliverse Email Tracker - Intelliverse Email Tracker provides insights to increase the productivity of your emails.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Komiko - Komiko is a sales intelligence solution to drive sales, retention and expansion.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.