Hi All need your help, I have a problem when I try to create new email account "An error occured while processing an e-mail address" with MS EXchange ID no: c1030b35. When I check on the event viewer the source related with MSExchangeSA that unable to locate a correct version on any server in the site. This problem occured two days after I install new exchange server (Join with current server) with service pack4 and my current Exchange server still used service pack3, and now I shut off the new server but the error still occured. Any one can help me how to solve the problem so I can create new email account ? Regards Ivan Dwi