MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Litmus - litmus tests and tracks your email campaigns, so you can always put your best design forward.
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Email on Acid - We make the send button safer. For every campaign, every message, and every inbox, Email on Acid has the time-saving tools you need to put your best email forward.
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.
Twilio SendGrid Email API - Twilio SendGrid Email API is a conversation platform that consists of the module, which enhances your communication strategies and interacts with consumers to get their response and improve your business quality.