Browser CRM is a Web-based suite combining integrated email functionality with flexible and powerful CRM (customer relationship management) and collaboration tools. Browser CRM is a single, comprehensive application that is accessible from anywhere. Browser CRM logs incoming and outgoing email against the customer record to build a complete customer history along with other Browser CRM events including Opportunities, Tasks, Appointments, Memos, Documents, and custom events.
Hastymail is a full featured IMAP/SMTP client written in PHP. The goal is a full featured yet lightweight Web mail client. After a complete review and rewrite, it provides many improvements over the original code including optional AJAX functionality, improved code organization, a plugin API, CSS and PHP template themes, and much more.
Openmailadmin is a little administration interface to every complete IMAP mail server daemon. It supports every feature IMAP provides, and fits in most MTA configurations. A key feature is the non-standard, generic administration hierarchy which not only seperates "normal users" from "administrators", but enables the mailserver-master to create instances between them. You will be able to let other users create their own sub-users and thus either share a single mail server between different organizations or project your company's employee structure. It excels with features such as regex addresses and folder ACL management.