Mail-in function to ProtonDrive, an integrated email inbox feature that allows users to forward and receive emails and attachments directly into their ProtonDrive account.

Each user gets a unique @mail-in.proton.me email address

When emails are sent to this address, the content and attachments are automatically saved in the user's inbox folder on ProtonDrive.

Attachments are automatically downloaded to the inbox folder or sub folder. ProtonDrive inbox generates a PDF of the email's full text.

Use cases:

1. Secure document reception: Users can have sensitive documents sent directly to their encrypted ProtonDrive storage.

2. Automatic file organization: Incoming files are securely stored in the inbox folder without manual intervention, and can later be moved to other folders manually.

3. Email archiving: Important emails can be preserved in PDF format within the secure environment.

4. Enhanced security: Attachments bypass potentially vulnerable email systems and are stored directly in the encrypted ProtonDrive environment.

This feature provides a convenient way for users to securely forward or receive and store sensitive information without manually uploading files or compromising on security.