Verify a changed e-mail address, multiple e-mail addresses per member

this must have been solved before, but I can’t find anything about it.

I’d like members to have multiple e-mail addresses, and set one of them as primary, and allowing them to delete the other ones.

In order to add one, members have to type the address and click a confirmation link.

This avoids that members can change their e-mail address, make a type, and get cut from communition from the site.

Anyone?

Your help would be greatly appreciated!