I'm using ExchangeService eService = new ExchangeService(ExchangeVersion.Exchange2010_SP1); and when I tried to changed email from that different what its trusted from server like : EmailMessage emailMessage = new EmailMessage(eService); emailMessage.From = Email_From; // here i got the error The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account. Cannot submit message How I can add new email so I can use it in exchnageServer ?
