9 copies forwarded

My outlook account is forwarding to another email I am shifting over to for my business. The problem is it is forwarding 9 copies of each email. I made the switch because I was having problems with Outlook. I had several people tell me their emails would bounce back they were sending to me. Furthermore, in my outlook account it shows several "failed to deliver" messages in the junk mail folder. Why is it generating so many copies of each email? This is really bogging me down as I get lots of email for work, and I find that I am constantly deleting email. Any help would be appreciated.