Failed attempt to create a ticket by email, from [email protected]

I received an email today:

[email protected]  attempted to create a ticket via email in the queue Incident Reports; you
might need to grant 'Everyone' the CreateTicket right.


Yet, I've double checked the permissions:



I have both items checked for Privileged an Unprivileged as well. 
"[email protected]" doesn't exist in the system as a user (yet). 
What am I missing?

-- 

Best regards,
Steve

---------
RT 4.4 and RTIR training sessions, and a new workshop day! https://bestpractical.com/training
* Los Angeles - January 9-11 2017