spam origination

I own quite a few .uk domains set up with 123 Reg web and email redirection.
Occasionally I get loads of 'undeliverable mail' as if someone has used my email address and sent out loads of spam.
Is there any way of tracing the originator's real email address as it looks bad on me that emails are coming from an address I own but have never used?!
I've even set up 'reject' in 123 and still get these 'bounced' messages.
Any help in tracing the 'a**eholes' would be gratefully received.
Kostas

 

It doesn't solve the problem, but to avoid the inconvenience of getting a load of guff in your inbox, you could configure the email settings for the domain/s so that they only accept emails to [email protected] (and so they bounce everything else). I assume you can do that with 123 Reg.

 

The email headers will be faked and the mail will have been bounced round several blind relay servers before reaching you making it v hard to track them down.

grant

 

Get yourself something like mailwasher at
http://www.mailwasher.co.uk and that will
bounce the mail back to the spammers from
your isp servers,

DG

 

Thanks gents for your replies...Now have a better understanding and appreciate your help.
Kind regards.
Kostas