The best Calendar alternative to Neomailbox is Proton Mail, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Neomailbox and eight of them are Calendar Apps so hopefully you can find a suitable replacement. Other interesting Calendar App alternatives to Neomailbox are Fastmail, Vivaldi Mail, GMX and Mailo.
Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.
Fastmail offers secure email hosting with comprehensive webmail services, including IMAP, POP, and SMTP protocols. It supports file sharing, shared folders, large mailboxes, instant messaging, and is compatible with popular email programs. Excellent for businesses with compliance features.
Vivaldi Mail is a free email service with no ads and no strings attached developed by Vivaldi Technologies. It also offers contacts and calendar features, search capabilities, folders management, WEB/POP/IMAP access, 10GB of storage capacity, 20 MB of maximum attachment size...
GMX Mail is a German-based free webmail service provided by GMX (Global Mail Exchange). In addition to an e-mail address, each GMX account includes a Mail Collector, Address Book, Organizer, and File Storage.
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
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