Free how to make a newsletter software for linux

PloneNewsLetter provides a product for sending newsletters based on new Plone content to an email address in TXT or HTML format.
PloneNewsLetter gives you the possibility to create your custom newsletters. The newsletter is prepared for being sent using your favourite mass mailer, and can be directly published on your site.
The process of creating your PloneNewsLetter:
- You create a new PloneNewsLetter
- Using PloneNewsLetter, you search your Plone site for content
- You select the documents that you want to make it into the newsletter
- You can click on the "create" button, and an html and text version of the newsletter are created.
- The html and text versions can now be edited and viewed quickly in a preview window.
- Once you are satisfied with the result, you can send the newsletter to your email address.
- You can use your favourite mass mailer to distribute the newsletter Features:
- The templates used for production of the newsletter are fully customizable.
- The selection of objects for the newsletter is remembered, so you dont have to reselect everything just because you changed the templates.
- If the user publishes the newsletters content, all users will see the HTML version of the newsletter. That way the the newsletter is automatically archived online.
- PloneNewsLetter consists of two object:
- A content type, for users
- A Portal Tool, for settings

C2::Newsletter is a simple tool for sending newsletters to your visitors. It allows you to create multiple newsletters, so your visitors can select which topics they want to receive.
There is an admin interface to add/edit newsletters and recipients, and send in plain text or MIME-encoded. It is easy to use, but currently only in German (English will be available soon).
Enhancements:
new Features
- Verification email is now configurable (plain text only)
- Supports now the admin as recipient for verification emails
fixed Bugs:
- Admin interface allows to list the recipients of a specified newsletter
- Config page => cancel button now works
- deleting a newsletter deletes also items in c2_mail_newsletter_selections
- holds email when adding a new recipient record
- verification of new recipients now works
performance:
- function GetConfig()