CowMail  

This is a creation of a web based pop3 compliant email client. It uses PHP's built in pop3 functions to login, get, and logout of any pop3 compliant server. The author built this for two reasons, one was to learn php, and the other, more important, reason was to create a frameless, javaless, aspless, style-sheetless, and completely old school html email client.

Hosting Requirements: PHP 4.3.1+; POP3/SMTP Server
Price: Free (GPL)

   Hastymail  

Hastymail is yet another webmail IMAP client written in PHP. Hastymail is designed for speed, RFC compatibility, simplicity, and security.

Hosting Requirements: Apache; PHP 4.1+
Price: Free (GPL)

   BCmail  

A very small, very fast POP to webmail script with good features.

Hosting Requirements: PHP 4.1+
Price: Free

   Mail Master  

With this PHP application you can check any of your emails that you may have from one portal. It logins you in with your POP3 and/or SMTP mail server, Email Addy, and password.

Hosting Requirements: Unix, Win NT
Price: $25

   MyMail Webmail  

A very simple but full POP3 mail client in PHP.

Hosting Requirements: *nix, Windows
Price: Free (GPL)

   V-webmail  

V-webmail is a powerful PHP based webmail application with an abundance of features, including many innovative ideas for web applications: Excellent user interface - Standards compliant - Easy installation and configuration - Full support for attachments and HTML mail - Support for internationalisation - Fully customisable using HTML templates - Online help system - Folder support (IMAP) - Filtering support (IMAP).

Hosting Requirements: PHP 4.0.6+; PHP IMAP Extension
Price: $435

   IlohaMail  

IlohaMail is a light weight yet full featured multilingual webmail program that is easy to use and install. It runs on a stock build of PHP, and does not require databases (although database support is available) or the IMAP library (it is powered by a custom IMAP/POP3 library). Features: POP3 & IMAP Support - Full featured Contacts list - Search messages - GPG/PGP support - Multiple sender identities - Calendar - Bookmarks manager and many more.

Hosting Requirements: Unix, Windows MacOS X; PHP4
Price: Free (GPL)

   Poppawid  

Poppawid is a free, fully featured web-based e-mail client written in PHP. Previously, Poppawid was know as Popper-mod_WID, but the name of it has changed to Poppawid. It is an extension of the now abandoned "popper_mod" project which was an extension of the original "popper" project. It also uses the POP3 mail protocol and SendMail. Features: POP3 mail server access - Stores data/prefs into a database - Simple, easy to use, skinnable user interface - Integrated Planner - Integrated Address Book - Multi-platform both server and client side - Access Multiple POP3 Servers - Easy first time user setup - E-Mail Filters - Spell Check.

Hosting Requirements: Apache; PHP 4.x
Database: MySQL
Price: Free (GPL)

   BPhp Webmail Frontend  

An easy to use, and simple to install webmail frontend. Features are: -multiple pop, imap server support -Inbox/Outbox/Sent/Saved Folders -Single and Multi host. -User database synchronisation -Address book -Simple to add it in your homepage. - and more...

Price: Free (GPL)

   DWmail  

DWmail™ is an 'intelligent' Web based email application written in the scripting language, PHP. DWmail™ allows you and your visitors to access, manage and send email using any POP3 or IMAP4 compliant email account. Simply enter your email address and password to check your email.

Hosting Requirements: Unix, Windows
Price: $32