NeoMail is a web-based e-mail client that can be installed on any UNIX mail server that is also running a web server. It requires Perl 5, suidperl, and NO additional modules to run. It supports sending and receiving messages and attachments, user preferences (including user-selected style support) and address books.

@Mail is the complete WebMail solution for your site. Utilize mail resources via a feature rich web interface or Wireless devices. Features include: POP3/IMAP support, attractive WebMail interface, Mozilla XUL interface, personal and group-scheduler/task utility, Groupware Sync support for Outlook, personal and group address-book, user preferences, multiple accounts, migration scripts, Email to SMS support, 100% customizable interface, Mod_Perl support, in-depth Web-based administration of accounts. Large Selection of multi-lingual interfaces available. Compatible with most Unix and Windows platforms. Online and download demo available

This is a formmail script with file upload to send email via the internet to whom you specify. The script is written in Perl and has a few advantages over other form to email scripts: it is totally platform independant, the formmail has the following features:Unlimited form fields - Can handle any number of HTML fields, Multiple recipient support - Have the feedback email sent to any number of different recipients! Form completion checking - Automatically checks the submitted form to make sure all required fields are filled in. Form completion checking - Automatically checks the submitted form to make sure all required fields are filled in. File upload ability - Allow users to upload files within the form and then choose to either have them saved on the server or MIME encoded and attached to the email.GPG/PGP encryption support - supports server side encryption using either GPG or PGP.

acmemail is a POP3 to Web gateway that lets you read mail from a POP3 mail server and display it using HTML on a web server. It can even display MIME attachments. It also has a security mechanism through cookies and allows you to delete mail via your browser.

Wemail is a Web-based email program written in Perl. It checks POP and IMAP and sends via sendmail or SMTP. It has all the basic features: custom folders, address book, attachments, html email, filters, sorting, search, message labeling and more. It requres only CGI.pm.

Mailreader is a fully-featured, MIME-compliant, Web-based POP3 email client which powers Mailreader.com. It includes users login system, spelling check, attachment support, multilingual support (French, English, Swedish, Finnish, etc)

SendEmail is a lightweight, completly command line based, SMTP email program. If you have the need to send email from a command prompt this tool is perfect. It supports attachments, multiple To, CC, and Bcc recipients, SMTP AUTH, custom message headers, and many other features. It was designed to be used in bash scripts, Perl programs, and web sites, but it is also quite useful in many other contexts. SendEmail is written in Perl and is unique in that it requires NO SPECIAL MODULES. It has a straight forward interface, making it very easy to use.

Spmail is a free web-based email client that allows users to send, receive and filter email from the POP3 mail server while they read and compose messages. It features: Message filtering, Multiple e-mail accounts, Address Book support, MIME encoding/decoding, Signature, and Show all headers - allows users to view all headers of incoming messages. Spmail requires a MySQL database, and DBI, Msql-Mysql, MD5 Perl modules.

GroupMail is a full-featured web-based email service similar to Hotmail, Yahoo etc. It also includes instant messaging for groups of associated users, an administrative control panel and easy installation.

BrowserExpress is a web based e-mail client. BrowserExpress web-enables any mail server in less than 10 minutes with only three files -- giving all your users web based e-mail from any web browser anywhere. The BrowserExpress interface is fully customizable to support your branding, banner advertisements and language choice. BrowserExpress implements POP3, SMTP, LDAP and MIME standards and includes English, Spanish, German, Italian, French interface.