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How to unlock extra storage when you join Proton Mail Free
Increase your free storage from 500 MB to 1 GB by completing our get started checklist within 18 days of creating your Proton Mail account.
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Reserve your child’s username in Proton Mail
Learn how to reserve a Proton Mail address for your child, secure their username, and activate the account with a voucher when they’re ready.
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How Proton Mail messages are encrypted
Learn how different types of encryption are used to store and send Proton Mail messages, and what changes if your recipient doesn’t also use Proton Mail.
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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.
