ProgressExp.Minimum = 0;
                ProgressExp.Maximum = 100;
                ProgressExp.Value = 5;
                //End of Progress Bar.
                // Replacer
                if (ClientId.Text != "" && SerialId.Text != "") //Replace Client And Serial
                {
                    mailbodykol = mailbodykol.Replace("no Client-Id", ClientId.Text);
                    mailbodykol = mailbodykol.Replace("no Serial-Id", SerialId.Text);
                }
                if (ClientId.Text == "" && SerialId.Text != "") //Cant be empty
                {
                    MessageBox.Show("You have to fill all fields, or leave it empty!\nThe mail will be empty.");
                }
                if (SerialId.Text == "" && ClientId.Text != "") //Cant be empty
                {
                    MessageBox.Show("You have to fill the fields, or leave it empty!\nThe mail will be empty.");
                }