Microsoft Exchange: How To Resolve A Distinguished Name
How can i resolve this: /O=CHEESE/OU=FIRST ADMINISTRATIVE GROUP/CN=RECIPIENTS/CN=LHALA1 to an email address? Do i have to use Exchange Web Services? Daro I'm assuming this is the legacyExchangeDN Attribute. Try something like this: string dn = "/O=CHEESE/OU=FIRST ADMINISTRATIVE GROUP/" + "CN=RECIPIENTS/CN=LHALA1"; string MailAddress=string.Empty; string user = string.Empty; using (DirectorySearcher ds = new DirectorySearcher()) { ds.Filter = string.Format("(&(ObjectClass=User)(legacyExchangeDN={0}))", dn); SearchResultCollection src = ds.FindAll(); if (src.Count > 1) { //Oops too many! } else