Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
LiveIntent - LiveIntent is a web platform that offers effective e-mail advertising services for marketers and publishers.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Affise - Affise offers performance marketing solution to manage and analyze affiliates, advertisers, creatives, conversions, offers, and payments.