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Proton Mail Plus trial
Sign up for Proton Mail using a referral link and you’ll get a free 30-day trial of Proton Mail Plus with 15 GB of storage and more.
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Proton Mail referral program
Invite a friend to sign up for Proton Mail Plus — they’ll receive the gift of privacy and you’ll earn up to three months' free subscription.
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Get started with Proton
Get to know your Proton Mail inbox and receive a storage upgrade to 1 GB.
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Proton Mail encryption explained
Proton Mail stores all data in an encrypted form. Here you can read about what is end-to-end encrypted and how the stored data is saved.
