NZBGet - The most efficient usenet downloader.
Mailman - Mailman is free software for managing electronic mail discussion and e-newsletter lists.
SABnzbd - SABnzbd is a free/open-source cross-platform binary newsreader written in Python.
Mailman 3 - Dedicated Mailman 3 installation. Unlimited lists/configuration. Free subdomain at mailman3.com. Dedicated support for list admins.
Newshosting - Join with any administration arrange and get finish access to the simple to-utilize Newshosting Usenet Browser.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.