CONTACT EMAIL BEFORE ALTERATION: *** Email address is removed for privacy ***

CONTACT EMAIL AFTER ALTERATION: "Bob Smith" <*** Email address is removed for privacy ***>

When this happens, Hotmail's own email system doesn't recognize the altered addresses. That means I can't use my built-in contacts to originate emails. I can go to the People screen and edit the contacts back to the "before" state, and then they work fine. But pretty soon they get altered again. I'm pretty sure it's a sync problem, but I have no idea how to fix it.

P.S. The contact alteration only shows up in my iMac desktop Hotmail account, which I access with Google Chrome. The contacts synced to the Samsung Galaxy Note 3 don't get altered.