List of open source and free email list managers or email list management softwares

1. PHP List: phplist is an open-source newsletter manager. phplist is free to download, install and use, and is easy to integrate with any website.
2. Mailman: Mailman is free software for managing electronic mail discussion and e-newsletter lists. Mailman is integrated with the web, making it easy for users to manage their accounts and for list owners to administer their lists.
3. ListMessenger Light: ListMessenger exceeds expectations as a well designed, easy to use and extremely robust mailing list management solution for any web site. ListMessenger is feature packed but because of its intuitive design remains simple enough so any website administrator can quickly manage his or her own mailing list and send out important newsletters or information to their e-mail subscriber base.
4. Simple mailing List: Simple Mailing List is an easy to use mailing list manager written in PHP. It was designed to be both simple and powerful at the same time.
5. OpenNewsletter: A free, simple, and beautiful open source newsletter solution aimed at small-medium scale. Very easy installation. Just upload and its working. No database needed.
6. PHP Mass/Bulk Emailer: The script allow you to send out large number of emails from your own server to the intended recipients.
7. MailLister: This tiny php web application allows you to collect email addresses from your web audience so you can easily add them into your automated mailing system.
8. HMAD: HMAD is user registration and mail management software. With this tool you can add new users and manage them. Send customers text & html mail or newsletter mails using the hmailer utility.
9. Tellmatic: Tellmatic – the newsletter machine – is a PHP based script (PHP4+5, Mysql4/5) to send newsletters. Use a generic browser like Seamonkey or Firefox to comfortably manage your addresses, forms and newsletters online.
10. Web Mailing List: Using a mailing list application can greatly enhance communication with your site visitors. Web mailing list makes it easy for users to signup for your mailing lists. Creating and sending out email newsletters is a snap. If you your users wish to unsubscribe, they simply visit your unsubscribe page and enter the email address where they received the newslettter.
11. Ami-Newsletter: PHP script to send newsletter in text or html format.
12. KrishanLetter: A comprehensive newsletter management system with personalized e-mails and HTML- and text newsletters.
13. PHP Multiple Newsletters Free: PHP multiple newsletters offers individuals / companies as entry level email broadcast system, that is simple to use.
14. poMMo: poMMo is versatile mass mailing software. It can be used to add a mailing list to your Web site or to organize stand alone mailings. Unique Features such as the ability to mail subsets of your subscribers set it apart from alternatives. poMMo is written in PHP and freely provided under the GPL.
15. CcMail: CcMail is a free, open, powerful Mailing List Manager that doesn’t require any programming knowledge. It was designed to have a user-friendly interface, being in the same time complete and powerful.
16. MyMail: MyMail is an advanced mailing list script built using PHP and MySQL. Even though MyMail is still in BETA stages it is extremely stable and able to send your emails out to your list. Some of MyMail’s advanced functions are; Server Load Manager, Full archive System, Import/Export Function, Email validation, List Clean, Welcome messages, easy unsubscribe and many more. MyMail requires a server with MySQL and PHP. MyMail works with both PHP3 and PHP4 although we have not thoroughly tested with PHP3. MyMail is even better because it can run on Windows servers aswell as Unix/Linux servers.
17. WEBinsta mailing list manager: WEBinsta mailing list manager is built to provide a centralized mailing list / newsletter system for small to medium website . Its simple yet quite powerfull . It support the standard subscribe and un-subscribe , remote verification , unsubscribe links , attachments and host of other such features . The best of all the total integration is less than 3 lines of code.
18. Announce Mail Free: Announce Mail Free is a PHP script to create your own mailing list. It’s very easy to install and run. Design of all public pages is fully editable.
19. phpLedMailer: phpLedMailer is a simple, cool, easy-to-use (once you’ve done it the first time) single-mailing-list application — that is, each install of it supports one mailing list.
20. WESPA PHP Newsletter: WESPA PHP Newsletter script allows you to manage a mailing list on your web site. It’s complete FREE, easy to install and to manage.
21. AFC Simple newsletter: Provided by: American Financing Simple Newsletter was designed for the beginner web programmer, although even advanced users will find it’s features great no matter what it’ll benefit you when your clients are excited to find that they are getting a newsletter.
22. Chipmunk Newsletter: Chipmunk Newsltter is a simple and flexible newsletter script using php and mysql featuring double opt-in and opt-out and a tracker to keep track which people the mail has already been sent to so you can send to remaining subscribers if the script times out.