Anamail is an email statistics gatherer. It allows you to construct a database and to gather arbitrary information from each email message to go into the database. Facilities are provided to write generic analysis routines in Perl CGI/mod_perl to display results on Web pages. Sample files are included to demonstrate gathering of author, date, mailing list, and MUA for email messages and to do simple analysis of the results.
BrowserExpress is a Web-based e-mail client. BrowserExpress provides a Web browser interface to any mail server, giving all your users Web-based e-mail from any Web browser. The BrowserExpress interface is fully customizable to support your branding, banner advertisements, and language choice. BrowserExpress implements POP3, SMTP, LDAP, and MIME standards.
CGI::ContactForm is a Perl module that generates a contact form for the Web and sends a message to a predestinated recipient. Unlike many form-to-mail programs, it's limited to this single purpose, but it allows you to set up a decently designed form with a minimum of effort. In other words, it's simple to use rather than flexible, even if there are quite a few customization possibilities.
E*Reminders is a series of PHP scripts that interact with a MySQL database to setup email reminders for any events or occasions you'd like. It includes recurring reminders, advance notices, and password authentication for email addresses. It can be used for an entire company, as a service for Internet users on your site, or privately.
Ezmlm mailing list manager class is a PHP class to create and manage mailing lists with ezmlm. It features display of a table that shows lists already created, listing of local and domain parts as well as the number of current subscribers, creation and alteration of list properties, alteration of list automatic message texts, and support for list virtual hosts. It comes with a SOAP server interface to handle remote requests to subscribe and unsubscribe users, count subscribers, and verify if an address is already subscribed.
Gutuma is a feature rich PHP newsletter/mailing list management tool that is designed to be easy to install and use. It doesn't require a database, yet offers multiple lists, import and export from CSV, file attachments, drafts, AJAX subscribe gadgets, administrator email notifications, MD5 protected logins, and batched deliveries that can be driven by a cron job.