I'm setting up an email service with AWS SES (Simple Email Service).
When SES receives an email sent to, e.g. launch.nukes@my-domain.com, it will perform some action.
To prevent anyone from triggering the action, I check the from address is a known user.
However, anyone could create their own email server and send emails using a fake from account.
Is there anyway that I can verify that the from address is actually a known user? If not, what work arounds might exist?
Note: the actual action taken will be to forward the received email to a list of many other people. It doesn't need super secure.