ProtonMail
Open Source
ProtonMail is an end-to-end encrypted email service.
Yandex.Mail
Free
Yandex.Mail is a free email service.
Zoho Mail
Freemium
Zoho Mail is a email service with ample storage, POP and IMAP access, some integration with instant messaging and online office suites.
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.
Tutanota
Open Source
Tutanota is an open-source end-to-end encrypted email software and freemium hosted secure email service.
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…
FastMail
Commercial
FastMail is an email service offering paid email accounts for individuals and organizations.
Wimi
Commercial
Wimi is a collaborative platform, for file sharing and online project management.
Hushmail
Commercial
Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service.
Compare Kolab Now with alternatives
Compare ProtonMail and Kolab Now and decide which is most suitable for you.
Compare Yandex.Mail and Kolab Now and decide which is most suitable for you.
Compare Yahoo! Mail and Kolab Now and decide which is most suitable for you.
Compare Zoho 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.