Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.
Mediaocean - Mediaocean offers the infrastructure to automate the advertising workflow.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Akismet - Akismet is a spam fighting service that protects millions of WordPress sites from comment and contact form spam.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
ConvertKit - Email marketing software for online creators. We help you earn a living online through an intuitive email marketing automation tool.