Hi Folks
I have my SME 6.5 server running well.  I am in the middle of setting up the EMail.  
I have modifed the DNS MX records so that they point to my server, but when i send mail to an address within the SME box i get the following error
This is an automatically generated Delivery Status Notification
Delivery to the following recipient failed permanently:
    ksmith@*****.com
Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 9): 550 unknown user
Has anyone got any ideas?
Cheers
Chris