My email address is dora@mydomain.com. When I create an event in the calendar and send it to an attendee, say "john@hisdomain.com", my invitation shows up in John's Inbox as from "dora", instead of my full name.

How can I change it to show my full name instead?  I have gone to  Settings > Send Mail as > edit the "From" address > update preferred Display name, but it does not work for me. 

Thanks in advance for your help.

-Dora