Receiving reported error ( 0x80040900)

Receiving reported error ( 0x80040900) : The server name you have entered cannot be found in the network. From the error message it appears that the computer can't resolve the domain name. You should try checking your email using your webmail http://mail.exampledomain.com ( replacing exampledomain.com for your domain name) If that fails you should try pinging the mail server to see if the domain name resolves and is reachable. You may want to look at the following knowledge base article. http://support.microsoft.com/default.aspx?scid=kb;en-us;813514