Stefan Beller wrote:

I may have missunderstood.

So today you cannot commit if you don't provide an email address
(usually the first time you try to commit, git asks to "git config
--global author.email=[off-list ref]"), if I remember correctly, so
there is definitely a valid (i.e. user approved) email address.

That's not true, that's only the case if you don't have a fully qualified
hostname, like 'localhost', but if you do, like localhost.redhat, then Git
assumes your email is user@localhost.redhat, and it's valid.

-- 
Felipe Contreras