TOPIC: delegated window could email without email address

I am wondering why there is an email address required when I delegate an action.
If I could delegate with an empty field and press the email button it would open an email in my email client and I could then simply use the local address book to fill in the email address.
Or maybe if I enter simply a name without an @ symbol it will keep the name but open an email with an empty field. It is quite difficult to know all email addresses by heart. An address book integration seems to be more difficult. What do you think?Sorry, I didn't see the other category. Please move this to Functionality/Questions

We have on our list to add the functionality to stored the delegated email addresses and filled it in as you type. Except on Linux, you can just type the name and not the complete email address. If the name match someone in your email list of contacts, then it is replaced within the email application.

For Linux, we had to do the check otherwise the email software was not called properly (if I remember well).