Is a powerful web based mail list manager. It will meet most of your needs for handling any size mailing list. indexsoft intuitive mailer supports unlimited mail lists, unlimited numbers of users, HTML messages, unlimited numbers of attachments, pending message dispatches, background message delivery, automatic user-side subscription and unsubscription and much more...

Main features:
Support for unlimited amount of subscription lists
Support for unlimited amount of users for each subscription list
Support for manual subscription and unsubscription
Support for one-at-a-time or group-at-a-time user subscription and unsubscription
Support for temporary message delivery disabling, for user or for group of users
Support for automatic email syntax and duplicate email entries check
Support for advanced search for user in user database

Working with messages:
Prepare messages in you favourite mail program, such as MS Outlook Express or The Bat
Arrange unlimited list of templates for each subscription list
Compose HTML messages
Preview messages for accuracy
Attach unlimited amount of files
Specify attachment list for each maillist
Easily access attachments on the server (they are stored in single shared directory)
Easily upload attachment files through web-based interface
Use special templates to automate subjects and messages composing
Adjust message headers (to comply with the localised codepage and others)
Customise charset converter (to comply with the localised codepage)
Use messages of unlimited size
Provide users with direct unsubscribe link

Message delivery features:
Each message delivers to user individually (your message will not be taken as spam)