Postmaster returned disaster

Over the last three weks I have been getting hundreds fo emails from
"POSTMASTER RETURNED MAIL" for many different reasons from all over the universe, apparently somebody has hijacked my system or is using my email address to send bogus emails to people, all i get every day now are numerous
"RETURNED MAIL due to no known address, unknown address, canceled addresses, this list goes on and on.Tuesday July 24 came home from work checked in my email. my inbox had 1202 emails from POSTMASTER returned postings and over 800 inmy junkmail. Has anybody else had this problem or know the right fix. I thought it might have come from OUTLOOK which I use every day, even bought and installed a legal copy of OFFICE 2003 Pro, had numerous conversations with MS Techs in India (whata treat that was). All to no avail they could not help me. I have done verything even with my service provider, everything but change my email address which I don't want to do, please help anybody if you have any idea what is causing this situation


Thanks in advnace trainref
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