Proton mail app for mac

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There are many different open source licenses but they all must comply with the Open Source Definition - in brief: the software can be freely used, modified and shared. Programs released under this license can be used at no cost for both personal and commercial purposes. Open Source software is software with source code that anyone can inspect, modify or enhance. Freeware products can be used free of charge for both personal and professional (commercial use). Use your own domain (ex: )Īlso Available: Download ProtonMail for Windowsįreeware programs can be downloaded used free of charge and without any time limitations.Send encrypted messages to external recipients.ProtonMail's revenue is used to support the following features for the benefit of the ProtonMail user community. Proton Mail is the world's largest secure email service with millions of users, and the service requires extensive infrastructure and expertise to run. You can support the service by upgrading to a paid account.

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The app is open source and basic accounts are always free. The secure email service is fully integrated with an encrypted calendar, enabling you to keep your events private as well. Proton Calendar and Proton Drive extend privacy to your events and documents. You can send and receive emails normally. ProtonMail for macOS secure email accounts are fully compatible with other email providers. It can be used on any device without software install.