Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Gammadyne Mailer - Automate your email operations with powerful software: Gammadyne Mailer
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
SendBlaster - SendBlaster is one of the most comprehensive bulk emailing systems available on the market. If you need to send newsletters, flyers, sale notices, or any other form of bulk email, SendBlaster can handle the task.