Question

I am trying to get a user’s email address in AD without success.

String account = userAccount.Replace(@'Domain\', ''); DirectoryEntry entry = new DirectoryEntry();  try {     DirectorySearcher search = new DirectorySearcher(entry);      search.PropertiesToLoad.Add('mail');  // e-mail addressead      SearchResult result = search.FindOne();     if (result != null) {         return result.Properties['mail'][0].ToString();     } else {         return 'Unknown User';     } } catch (Exception ex) {     return ex.Message; } 

Can anyone see the issue or point in the right direction?

Answer 1

Disclaimer: This code doesn’t search for a single exact match, so for domain\j_doe it may return domain\j_doe_from_external_department‘s email address if such similarly named account also exists. If such behaviour is undesirable, then either use a samAccountName filter intead of an anr one used below or filter the results additionally.

I have used this code successfully (where ‘account’ is the user logon name without the domain (domain\account):

// get a DirectorySearcher object DirectorySearcher search = new DirectorySearcher(entry);  // specify the search filter search.Filter = '(&(objectClass=user)(anr=' + account + '))';  // specify which property values to return in the search search.PropertiesToLoad.Add('givenName');   // first name search.PropertiesToLoad.Add('sn');          // last name search.PropertiesToLoad.Add('mail');        // smtp mail address  // perform the search SearchResult result = search.FindOne();