Email address change history (logging and querying)

I am looking for a way to let administrators (roles-based, preferably) keep track of the email addresses that has been used with each account on a site.

I dont think Drupal logs email address changes in watchdog or elsewhere.
Maybe the email confirmation module in practise provides such watchdog entries that could later be queried. Although I would not prefer having historic information that I want to keep, stored in watchdog.

I still also need a way for the administrators to easily display a list of the email change history of a particular user. Something like
"Date of change, old email, new email",
each change listed on its own line in descending order, for example.

Does any modules already do something like this?