Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Bonusly - Recognition and rewards that make work fun
Mailman 3 - Dedicated Mailman 3 installation. Unlimited lists/configuration. Free subdomain at mailman3.com. Dedicated support for list admins.
Assembly - Work smarter, not harder. Save 1 day/week with free customizable workflows. Get access to 40+ workflow templates such as Employee Recognition & Engagement. Simplify your day-to-day workflows, increase team productivity & add simplicity to your work.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Fond - Fond employee engagement platform helps companies increase employee happiness with recognition, rewards, perks and survey programs to maximize impact..