Statements not emailing to CC email address

Any idea why statements are not sending to CC email addresses?

Since MYOB are yet to implement showing the confirmation of statements being sent, I have added our email address as a CC email for every client.  (Not ideal but if MYOB won't add this feature, it was a work around).

When statements are sent, our email listed as CC are not receiving it.  

To test the system, we have created a dummy client with our email address.  Statements are received when this email address is in the 'email' box but not when it is listed in the 'CC email' box.

Some clients want their accounts dept to receive only invoice and statement emails so we need to keep the 'email' box and the 'CC email' box separate.  MYOB has provided this feature but it is pointless if the CC email addresses are not recognised.

If only MYOB would list confirmation of statements being sent, as they do with invoices.