I have been using this same email address for over ten years.  Since August 14, 2016, I haven't been able to send or receive email messages.  I received the following message:

UNABLE TO SEND OR RECEIVE MESSAGES FOR ...MY ACCOUNT

SERVER ERROR 3219

SERVER:  https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'

WINDOWS LIVE MAIL ERROR ID:  0x8DE00005