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Encrypting your email with PPAD

Written by Andre Klaus

Benefits of email encryption

PPAD encryption ensures that only the intended recipient can view an encrypted email and its attachments. Even if the message is forwarded or shared elsewhere, others won't be able to access the content unless you explicitly grant permission. You also retain visibility into who is viewing your encrypted content and attachments, giving you ongoing control over your sensitive information even after it's sent.

How to encrypt an email

To send a protected email, open the Compose window and turn on Encrypt with PPAD.

With the toggle activated:

  1. Contents of the email message are encrypted.

  2. Email attachments are encrypted, as long as they're in a supported format (see below).

Once an email is encrypted, only people you've authorised can view it. If it's forwarded to someone else, or shared some other way, that person won't be able to view it without your permission.

Adding an introductory message

You can add an introductory message to your email. This message is not encrypted and gives the recipient context on your encrypted email. When they receive it, your recipient can see the introductory message right away, without needing to authenticate to view the rest of the message.


Encrypting attachments

Attachments are encrypted automatically when they're one of these formats:

  • PDF

  • Images (PNG, JPG, GIF, BMP)

  • MP4

  • XLSX

  • PPTX

  • DOCX

Attachments in any other format are sent as normal, unprotected files. A warning message will highlight any attachments that cannot be encrypted.

Reading Encrypted Attachments

When attachments are encrypted, they receive a .ppad extension. A recipient of encrypted attachments can view them by:

  • Authenticating and viewing the email on the online portal. A link to this portal is provided as part of the encrypted email.

  • Downloading them and opening them with the dedicated PPAD viewer (available at app.ppad.io).

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