Yahoo! Mail
Free
Yahoo! Mail, a web-based email service, launched in 1997 through the American parent company Yahoo!. Yahoo! Mail provides four different email plans: three ar…
Enigmail
Open Source
Enigmail is a data encryption and decryption extension for Mozilla Thunderbird and the SeaMonkey internet suite that provides OpenPGP public key e-mail encryp…
Wimi
Commercial
Wimi is a collaborative platform, for file sharing and online project management.
Mailvelope
Open Source
Mailvelope is a free software for end-to-end encryption of email traffic inside of a web browser (Firefox or Chromium) that integrates itself into existing we…
Mailpile
Open Source
Mailpile is a webmail client with encryption and privacy features built-in. Mailpile is free and open-source software.
Kopano
Open Source
Kopano is an open-source groupware application suite originally based on Zarafa.
Microsoft SharePoint
Commercial
Microsoft SharePoint is a browser-based collaboration and document management platform.
Microsoft Exchange Server
Commercial
Microsoft Exchange Server is a mail server and calendaring server.
Compare Kolab Now with alternatives
Compare Yahoo! Mail and Kolab Now and decide which is most suitable for you.
Compare Microsoft SharePoint and Kolab Now and decide which is most suitable for you.
Compare Mailvelope and Kolab Now and decide which is most suitable for you.
Compare Microsoft Exchange Server and Kolab Now and decide which is most suitable for you.