Self sending / bouncing spam - how can I stop it?

How can I filter spam and virus sent forging me in the From/Reply address and that bounce back to me, due to:
- unknown user
- spam detected
- virus detected
- out from office
- etc

Since the last weeks, I'm getting several hundred such messages each and every day. There is not a common origin on these messages. I suspect it is a virus spamming using my biz address.

I'm using Cpanel and SpamAssassin, but it seems to be unable to filter those bounced messages.
Any idea of how can I filter them?

 

 

 

 

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