
ProtonMail
Open SourceProtonMail is an end-to-end encrypted email service.
Looking for Kolab Now alternatives? We've curated 7 top alternatives that offer similar functionality. Whether you need iPad options, free plans, or open source solutions, explore our comprehensive list to find the perfect fit for your needs.
ProtonMail is an end-to-end encrypted email service.
Tutanota is an open-source end-to-end encrypted email software and freemium hosted secure email service.
Yahoo! Mail, a web-based email service, launched in 1997 through the American parent company Yahoo!. Yahoo! Mail provides four different email plans: three are for personal use (Basic, Plus, and Ad Free) and another is paid-for business use.
FastMail is an email service offering paid email accounts for individuals and organizations.
Kopano is an open-source groupware application suite originally based on Zarafa.
Wimi is a collaborative platform, for file sharing and online project management.
Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service.
ProtonMail is an end-to-end encrypted email service.
Tutanota is an open-source end-to-end encrypted email software and freemium hosted secure email service.
Yahoo! Mail, a web-based email service, launched in 1997 through the American parent company Yahoo!. Yahoo! Mail provides four different email plans: three are for personal use (Basic, Plus, and Ad Free) and another is paid-for business use.
FastMail is an email service offering paid email accounts for individuals and organizations.
Kopano is an open-source groupware application suite originally based on Zarafa.
Wimi is a collaborative platform, for file sharing and online project management.
Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service.
Want to see how Kolab Now stacks up against alternatives? Select any option below for a detailed comparison.