linux - sudo to any user without a password

If sudo can be configured to no password such as:

bob ALL=NOPASSWD: ALL

Then how can you configure sudo to be able to sudo to any user without password ?

So that

sudo -u domainnameuser.com mkdir www

Works for the sudo user without prompting for a [sudo] password ?

Is it possible to allow this without explicitly enabling it for each user in /etc/sudoers.d and just allow switching to all users and using all commands ?