MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Mailman 3 - Dedicated Mailman 3 installation. Unlimited lists/configuration. Free subdomain at mailman3.com. Dedicated support for list admins.
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.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
SendPulse - Maximizing e-mail marketing open rates automatically
Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.