InstAddr - Disposable email address application.
CounterMail - Countermail is a web-based email service. It is hosted in Sweden. Its focus is on privacy.
Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.
Webmail.ca.za - Free email, file storage, sms and more.
Mailo - Mailo is an email client where you can send and receive emails to and from anyone with an email address.
eclipso Mail Europe - Privacy first. Your Email. Your Cloud. Your Office. Simplify your life with eclipso, the safe & central place to organize and share your emails, photos, files, contacts, calendar events and more.