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Spam - Email getting through but not the person's name

We recently have installed Exchange 2003 as our email server ( had pop account prior). I need to install anti spam software and am in the process of getting that. My question is when spam comes in and is recieved in and individuals mailbox but it is not addressed to them - how is it getting there.

Example: mailbox name is peterf@domain.com but some of the mail received is yz@domain.com. How is it being routed there?
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Pdeters
Asked:
Pdeters
1 Solution
 
Leon FesterCommented:
If the user has been added to a mailing list.. it would appears with the list and not as sent directly to the users.

It was common practise some time ago for spammers to create mailing list on yahoo/hotmail and then send mail to that email address. It would be received by the intended recipient, but the name that it was sent to would not be displayed.

Check the message header and see what you can find there...

It is also possible to test if the above is correctly by using the email address checker on www.dnsreport.com

goto www.dnsreport.com

enter the email address in the second textbox and it should then tell you if the mailbox exists on the mail server of the senders domain.
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PdetersAuthor Commented:
Thanks!
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