Sanebox - SaneBox is a cloud-based service that allows users to filter and manage their emails.

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

Covideo - Covideo is a Video Email Platform for Businesses that enables companies to communicate quickly and effectively with their customers.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

SpamTitan - Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats.

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.