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Get a Windows Active Directory User Email Address

/ Published in: C#
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  1. /// <summary>
  2. /// Gets the user AD email address from Principal Context.
  3. /// </summary>
  4. /// <param name="username">The username.</param>
  5. /// <returns>Returns the email address of AD user, and an empty string if not found.</returns>
  6. public static string GetADUserEmailAddress(string username) {
  7. 	using (var pctx = new PrincipalContext(ContextType.Domain)) {
  8. 		using (UserPrincipal up = UserPrincipal.FindByIdentity(pctx, username)) {
  9. 			return up != null && !String.IsNullOrEmpty(up.EmailAddress) ? up.EmailAddress : string.Empty;
  10. 		}
  11. 	}
  12. }

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