On my retrieval of password when I enter the correct secret answer I get the following error message:

Host smtp was not specified.
Description: Exception noncontrolled when executing the request present Web. Review the pursuit of the battery to obtain more data about the error and where it was originated in the code.
Details of the exception: System.InvalidOperationException: Host smtp was not specified.
Error of source code:
An exception noncontrolled during the execution of the request has been generated present Web. The information on the origin and the location of the exception can be identified using the exception of the pursuit of the following battery. 
Pursuit of the battery:
[InvalidOperationException: Host smtp was not specified.]
   System.Net.Mail.SmtpClient.CheckHostAndPort () +1088685
   System.Net.Mail.SmtpClient.Send (MailMessage message) +223
   System.Web.UI.WebControls.LoginUtil.SendPasswordMail (String email, String username, String password, MailDefinition mailDefinition, String ...