I suddenly started getting lots (200+ per day) backscatter emails, which started about 3 days ago and are continuing. I immediately changed my password and then checked in my sent items. At the time that the backscatter started I can see about 6 emails in my sent items which are typical spam and do not originate from me.  I presume that this means that my account was hacked.

However, why does the amount of backscatter I am getting so greatly exceed the number of emails in the sent folder? And why it it continuing? Is my account still being compromised? What can I do to reduce the backscatter?

Thanks

Joe