Hi Imar
I tried sending mail with the CreateUserWizard. My SMTP server needs authentication, which I declared in the web.config.

Here is the code (I removed the password):
<smtp deliveryMethod="Network">
<network host="mail.avidan.co.il" password="XXXXX" userName="[email protected]" port="2525" defaultCredentials="true" />
</smtp>

It didn't work, I got an yellow error page (server needs authentication etc etc).

I added then the following code in the CreateUserWizard1_SendingMail prcoedure:

Dim mysmtpclient As SmtpClient = New SmtpClient("mail.avidan.co.il")
mysmtpclient.Port = "2525"
mysmtpclient.Credentials = New System.Net.NetworkCredential("[email protected]" , "xxxxx")
mysmtpclient.Send(e.Message)
e.Cancel = True

Now it's working! Why did I have to add the code in the CreateUserWizard1_SendingMail procedure? I thought putting the code in the web.config is enough.

Thanks
Alex

The problem with your web.config configuration is the addition of this attribute:

defaultCredentials="true"

This attribute makes the SmtpClient object use your windows credentials instead of the username and password that you provide to connect to the server. By default it is set to false, so you can either not include it in the network element OR set it to false.