E-mail hacked and address stolen.
1. Three days ago I began receiving messages from MAILER-DAEMON@yahoo.com (error code 475) that were addressed to my e-mail address. Several friends sent me e-mails reporting strange messages from me and suggested that I'd been hacked. I contacted AT&T and had several long discussions with U-Verse technical support. On their advice I followed the password reset protocol on three separate occasions and received the appropriate acknowledgement messages from AT&T Online Services. I deleted ALL e-mails from my Inbox and Sent Messages associated with the e-mail address on my desk top, lap top, and mobile phone. The MAILER-DAEMON messages continued -- three the first day, 40+ the second, 25+ the third. Is there any escape from this situation except eliminating the e-mail address? And if I do that, can I disassociate myself from that address?
2. How does one contact Yahoo e-mail?
3. Is this part of the "Yahoo breach" or something else?