C# SMTP authentication failed but credentials are correct

Question

Here is my problem: I wrote whe following program to test if I can send email:

class Program
{
    static void Main(string[] args)
    {
        try {
                   


        

Answer 1

For anyone interested. I had a problem t=with this today. and found my solution was the order.

SMTPClient client = new SMTPClient();
client.UseDefaultCredentials = false; // first after declare and needs to be false.

Then:

client.Credentials = new System.Net.NetworkCredential(sMTPSettings.SMTPLogin, sMTPSettings.SMTPPassword);

Then the rest.

Hope it helps someone