
Mailfence
FreemiumMailfence is a web-based email service that offers OpenPGP based end-to-end encryption and digital signatures.
Discover best Caldav Online softwares, apps and websites.
Mailfence is a web-based email service that offers OpenPGP based end-to-end encryption and digital signatures.
Memotoo sync all your contacts from Gmail, Facebook, phone, Thunderbird, Outlook, etc in a single address book.
Kopano is an open-source groupware application suite originally based on Zarafa.
Baïkal is a Cal and CardDAV server, based on sabre/dav, that includes an administrative interface for easy management.
SOGo (Scalable OpenGroupware.org) is an open source collaborative software (groupware) server with a focus on simplicity and scalability.
Kolab Now is a web-based email and groupware service, based completely on free and open-source software.
OwnDrive is easy to use free online storage service for businesses, professionals, and individuals to store, backup, collaborate and share files with others.
Kolab is a free and open source groupware suite.