Exchange spamm e-mails

I have receive a 5 to 10  daily  e-mail messages with like 50 e-mail addresses cc same as my exchange server ******
The ***** is  for example but sure each add in the cc is different****but
I test relay for my e-mail is not open any help
I have exch 2007 sp1 under sbs2008
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If it is not the server sending them, run Malwarebytes on all the client PCs to find out if one of them are sending it out.
AmitIT ArchitectCommented:
Please paste the header information in below link

This will guide you from where it is coming. If possible post it here
Does your domain registrar have an SPF record along with the MX record to make spoofing more difficult?

See info and how to here:

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please go through this a very good article from the expert for spamming issue..
bugs-itAuthor Commented:
I activate smtp proxy from UTM netasq
now i am monitoring what is happening

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bugs-itAuthor Commented:
after activate the anitspam option in netasq utm i solve the problem
bugs-itAuthor Commented:
cos it slove my problem when i activate my ant-spam from utm and i able to monitor the messages
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