What Happens to Inactive Email Accounts?
If you haven’t logged in to your Yahoo account in over a year, do so before July 15 and it will remain active.
Other email and Web service providers have policies that allow them to reclaim inactive accounts. Microsoft claims the right to deactivate accounts after 270 days of inactivity. Google gives you nine months, effectively the same as Microsoft. AOL will deactivate accounts after just 90 days of inactivity. You then have a 30-day grace period, after which AOL will delete all your stored messages, photos, etc.