MDaemon
Released on June 12, 2007. Features included:
Account Grouping, and Account Validation Using Minger Server.
Released on May 11, 2004. Features included:
Detect Spoofed Email Addresses.
Released on September 4, 2012. Features included:
Detect and Stop Hijacked Accounts, IMAP "Compress" and "Binary", Simple Message Ticketing System, and Traffic Charts.
ActiveSync - Over-The-Air (OTA) Synchronization of Individual Email, Calendar, Contacts, and Tasks on iPhone, Android, Windows Phone, and BlackBerry (OS 10) Smartphones with Autodiscover Service.
One Simple Management Console for Mobile IT Policies for Domain Level Device Policy Management, Customizable Device IT Policies, Password Assignments / Resets, and Remote Device Wiping.
WorldClient (Web-Based Email Client) - Custom Branding, Document Folders, and Drag and Drop Attachments.