Dear DNN Forum,

I have 'verified registration' setup on my portal, but when a new user signs on, the website administrator(website@guchusum.org) receives an email but the new user does not(unless the new user has a @guchusum.org email address). From reading previous posts on this forum this suggests that 'authentication' has not been setup correctly. Indeed the logs found after a new user signup (found in Admin>Log viewer) display this:-

"InnerException: Mailbox unavailable. The server response was: Authentication is required for relay"

Is this authentication required because my server(guchusum.org) does not send out emails to non-guchusum.org email without authentication?

Does 'authentication' mean SMTP authentication? Since I have already setup SMTP settings to:-

SMTP Server: mail.ultimahosts.com
SMTP Authentication: Basic (though NTLM has also been tried before)
SMTP username: website (since the email account is website@guchusum.org)
SMTP password: xxxxx

The test has been run on the SMTP server and the SMTP config test did work successfully.

Or does 'authentication' means Windows Authentication too?
I notice that in Admin>Authentication the only fields filled are:-
Provider:ADSIAuthenticationProvider
Authentication type:Delegation

When I click update the following error shows:-
Error: Windows Authentication is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Security.Authentication.ADSI.Utilities.AddADSIPath(String Path, Path ADSIPath) at DotNetNuke.Security.Authentication.ADSI.Utilities.GetRootEntry(Path ADSIPath) at DotNetNuke.Security.Authentication.ADSI.Utilities.GetRootEntry() at DotNetNuke.Security.Authentication.ADSIProvider.GetNetworkStatus() at DotNetNuke.Security.Authentication.AuthenticationController.NetworkStatus() at DotNetNuke.Modules.Authentication.AuthenticationSettings.cmdAuthenticationUpdate_Click(Object sender, EventArgs e) --- End of inner exception stack trace ---

So would the above error also be affecting my ability to send verification emails to new users?

Kind regards,

Tim Pollington.