Hi everyone.

I followed an Email tutorial on this link:

https://www.tutorialspoint.com/vb.ne...send_email.htm

The purpose for sending email is when user wants to reset password. A new password is sent to their email.

Code:
Private Sub FgtPW_LinkLabel_LinkClicked(sender As Object, e As LinkLabelLinkClickedEventArgs) Handles FgtPW_LinkLabel.LinkClicked
        If MessageBox.Show("Are you sure you want to reset password?" & vbNewLine & vbNewLine &
               "A new password will be sent to the following email:" & vbNewLine & vbNewLine &
               vbTab & My.Settings.Email, "Forgot Password",
         MessageBoxButtons.YesNo, MessageBoxIcon.Question) _
         = DialogResult.Yes Then

            Try
                Dim SmtpServer As New SmtpClient()
                Dim mail As New MailMessage()
                SmtpServer.UseDefaultCredentials = False
                SmtpServer.Credentials = New Net.NetworkCredential(My.Settings.Email.ToString, "password")
                SmtpServer.Port = 587
                SmtpServer.EnableSsl = True
                SmtpServer.Host = "smtp.gmail.com"
                mail = New MailMessage()
                mail.From = New MailAddress("[email protected]")
                mail.To.Add(My.Settings.Email.ToString)
                mail.Subject = "EVC Kiosk New Generated Password"
                mail.Body = "This is for testing SMTP mail from GMAIL"
                SmtpServer.Send(mail)
                MsgBox("mail send")
            Catch ex As Exception
                MsgBox(ex.ToString)
            End Try

        End If
    End Sub
1st Question:

I was flashed with the error upon testing. Something about SMTP server requires a secure connection or the client was not authenticated.

Name: emailError.jpg Views: 564 Size: 45.4 KB

Can anybody tell me what this means?



2nd Question:

Code:
SmtpServer.Credentials = New Net.NetworkCredential(My.Settings.Email.ToString, "password")
Do I really need an email password here? I mean there is no way I will know the email password the user will have. When we send email to others, we are not asked for their password right? Also, what if the user changes email with different password.
I don't understand the reason behind this line of code. Can anyone enlighten me?