Do you use Web Service to send emails?

SmtpClient client = new SmtpClient();
try
{
    client.Host = "****.***.com.au";
    client.Port = 25;
    client.UseDefaultCredentials = true;

    MailAddress from = new MailAddress("test@ssw.com.au");

    string unrecAddy = "test@ssw.com.au";
    MailAddress to = new MailAddress(unrecAddy);

    MailMessage mailMessage = new MailMessage(from, to);

    mailMessage.Subject = "aaa";
    string strVer = "aaa";
    mailMessage.Body = "aaa";

    client.Send(mailMessage);

}
catch(Exception ex)
{
    client.SendAsyncCancel();
    MessageBox.Show(ex.ToString());
}

❌ Figure: Bad example - Send mail without webservice

Emailer.PubicFunction pf = new EmailWebServices.Emailer.Publiction();
pf.SendMail("Test", textBox3.Text, textBox1.Text, textBox2.Text, false, "", null);

✅ Figure: Good example - Send mail use webservice