I am using Windows 7. Have had Outlook/Windows Live Mail for many years with no problem.

About a week ago it stopped sending emails. Every email I try to send (dozens now) come back to my inbox with this message:

DELIVERY STATUS NOTIFICATION (failure)

postmaster.mail.hotmail.com

This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.
       *** Email address is removed for privacy ***

(Please note that there is no error code provided with any of these messages.)

No one has been able to find out the reason. (I do have over 30,000 messages in my inbox). Some suggest it is not in the mail application but in my Microsoft Account.  How about deleting this account and opening a new one? I am desperate at this point. Thank you.

*** Email address is removed for privacy ***