The Autocrypt standard has been developed to provide automatic email encryption. This is done as follows:
Each email sent includes the public key of the sender in the email header. This key will be imported automatically or manually by the recipient.
Autocrypt has the following limitiations:
There is no check for automatically imported keys to see whether they are correct or fake.
For this reason, an automatically imported key is not used for verifying the sender's signature.
To manage Autocrypt keys and verify them later, the following options are available:
Parent topic: Encrypting Data with Guard