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BigSender helps you stay in touch with clients and prospects just. BigSender easily sends personalized high-volume emails and features web-based list management, self-installation, unique hybrid rich text/plain text messages with automatic HTML converter, one-click archive publishing, opt-in activator, single-click opt-out, welcome letter, redundancy checker, security, file-locking, name and label fields, preview testing, and many other must-have features found only in custom systems.
Price: $189.00

This is a mailing list script written in perl, it allows a webmaster to have an e-mail mailing list. A user can send an e-mail to everyone on the list, and the user can also delete a subscriber. The script also enables the recipient to add and remove themselves from the list.
Price: Freeware

This bulk mailer script will send email messages to your members mailing list.
Price: $49.00

CGI-Subscribe lets users sign up on your website to be on your mailing list. You can use this for information about site updates, newsletters, announcements, etc.
Price: Freeware

Once you install Co-Reg Master in your server (it only takes a couple of minutes) you simply add the co-registration offers (with their respective checkboxes) to your forms. Every time someone submits one of these forms, Co-Reg Master will register them to the offers they have selected and then let your scripts take care of processing the form as they normally do. That means that you could be selling co-registrations to third-party advertisers (and growing your own opt-in list) when your visitors perform everyday actions at your site like - Sign up for your ezine/mailing list, Download your software, ebooks, or any other downloadable file you offer, Use your contact form etc.
Price: $24.95

The mailing list software is built to be flexible, and gives you the option of how you want to run your mailing list. As the administrator, you can decide whether or not you want users to be able to join up automatically, or whether you want to generate a password for them to subscribe and send it to them via email (hence validating their email address).
Price: $199.00

Consolidator is for the serious web master looking for a one time low cost e-mail marketing solution for all current and future clients. Robust enough to support hundreds and thousands of members, or use it to run and manage just your own mailing lists. Incomplete Mailing Detector, Import subscribers from Outlook or any other e-mail client, Detects bounced e-mail addresses, Up to 20 custom fields on your sign up forms, Send multiple file attachments, Double Opt in option, Advertisement management, Personalized messages using any of the data collected, Unique Signatures for each mailing list and many more features.
Price: $100

CosmicMailing is a heavy duty mailinglist. It is simple to setup and easy to maintain as you don't actually have to do anything. When a person submits their data to the mailing list it adds them to a pending file and automatically e-mails them back with a confirm link. At the confirm page their details (name and e-mail address) are displayed and all they have to do is either confirm their addition to the list or simply remove themselves from the pending file. Your e-mail list is updated instantly and they will receive another e-mail welcoming them to your mailing list.
Price: $39.00

csNewsletter is a robust web based newsletter management system. You can create multiple email lists, send text or HTML emails, even add attachments. It also has a built-in HTML Editor for creating professional looking html email based newsletters. The delivered email looks just like a web page. You can send pictures, links, forms, banner ads, colors, just about anything. Preview the message before sending, make adjustments as required. Adjust the sender and subject of the email each time you use the system. Your visitors will be able to subscribe or unsubscribe to your mailing list automatically.
Price: $49.00

It provides a simple way to make newsletter/discussion list email subscribe/unsubscribe text links function as a handy form selection box. Real world testing has shown this to be 400% more effective than standard listserv-type links! The HTML output pages (subscribe/unsubscribe confirmation) are very easy to customize as desired, so the script will blend seamlessly with your site design.
Price: Freeware