listmonk - Free and open source self-hosted newsletter, mailing list manager, and transactional mails
Newspack - The platform for news.
Sendy - Send Newsletters 100x cheaper via Amazon SES
Logiciel d'emailing & marketing par e-mail - YMLP
Postorius 1.3.9b1 documentation
Weightless
beehiiv
Smart Subscriber
Gumroad – Sell what you know and see what sticks
ConvertKit | Email Marketing for Online Creators
Substack
Buttondown