Email encryption

Encrypt emails

By default, the transport route for e-mail communication is TLS transport encrypted. Additionally the data transfer via email is secured at luckyloud with DNSSEC and DANE . This network protocol ensures that certificates cannot be exchanged unnoticed during transport. Unfortunately, only very few email providers offer this security protocol. Here you can perform a security analysis of your email providers.

However, in many cases this protection is not sufficient. Email communication between two persons can therefore be encrypted with PGP (= Pretty Good Privacy). PGP is the end-to-end encryption for emails and works similarly.

Encrypt emails with PGP in Webmailer

  1. log in to the Webmailer .
  2. click on the [Settings] icon (https://mail.luckycloud.de/#/settings/openpgp?target=_blank) at the bottom left.
  3. select OpenPGP.
  4. Import the public key of the recipient you want to communicate with in encrypted form. Click on "Import OpenPGP key " to do this.
  5. generate yourself a Private Key and a Public Key. Click on "Generate OpenPGP key ".
  6. Enter the following information: Email address for which you want to create the PGP keys. Name: Under which name should the key be saved? So you can distinguish the keys later, if you have created several PGP keys. Password: You must enter the password if you want to send an encrypted email address.
    • Key length: The longer a key, the more secure. Therefore we recommend an encryption with 4096 Bit**.
  7. Then click on "Generate ".
  8. please save your keys carefully. Currently the keys are only in the browser cache. As soon as you empty your browser cache, you also delete the keys.
  9. You can now send an email to your recipient by writing an unformatted message. Click on the HTML < - > Text-Button.
  10. Go to the mail menu (the three dashes at the top right) and select "OpenPGP ".
  11. Now click on "Signature" and enter the Password you created during the OpenPGP key generation.
  12. Under "Signature" you must select "Select private keys" and under "Encryption" you must select "Add public key".
  13. encrypt your previously written message content with "sign and encrypt ".
  14. With "Send " you send the encrypted email.

So that your recipient can decrypt the message, you must inform the recipient of your Public Key.