Question : Someone is sending spam and using my email address as the return path. I am getting 100’s of 550 error messages returned to my inbox. Any suggestions on how to correct this without deleting my email address?
There is effectively nothing you can do about this, except to wait for it to stop.
Forging a return address on email is no more difficult than writing a letter, putting it in an envelope, putting someone else’s return address on the upper left corner, and dropping it in a mailbox.
If you’re using an email client program like Outlook to fetch your messages, you could set up a rule that looks for something in the subject line, for example, that identifies these bounce messages, and moves them all to a junk folder, for easier deletion.
Usually, the spammers don’t keep using the same address for too long – if they did, they’d start getting blocked. So, they switch spoof addresses pretty regularly, and your bulging mailbox should return to normal.
Also, check your website for any security holes, spammer may have used your scripts’ security bug to send spam.