Changes

|Scenario Task Description=It When sending an email, it is incredibly easy to fake (or "spoof") an one's email address on the Internet. For example, try sending yourself an email with a made up identity from https://emkei.cz  In order to be certain of each other's email identity the message needs to be signed cryptographically. You can [[I want to learn about digital signatures | do this yourself ]] or learn about exiting existing authentication methods used by some email providers.