Today, my account was "reactivated" and I was greeted by the following email:

> Dear USER,

> We’re so glad to see you’re back! Due to inactivity, your mailbox entered an inactive state. This means we stopped accepting your incoming emails. If your period of inactivity was long enough, we also deleted all of your emails. Now that you’ve signed back in, your mailbox has been reactivated and you will start receiving new emails again shortly. For more information, please visit the Yahoo Mail policy page at: https://en-global.help.yahoo.com/kb/mail/SLN2018.html

Rest of my inbox was empty and I've lost some important emails (I only used this email for some legal matters 2 years ago).

A word of caution to all, set up a reminder to logon to your dormant email addresses every few weeks.