F1v045Yg

1 try
2           {
3                if (!textBox1.Text.Contains("gmail.com"))
4              {
5                    MessageBox.Show("You need to provide an email @gmail.com");
6                    return;
7                }
8                button1.Enabled = false;
9                MailMessage message = new MailMessage();
10                message.From = new MailAddress(textbox4.Text);
11                message.Subject = textBox2.Text;
12                message.Body = textBox3.Text;
13                foreach (string s in textBox5.Text.Split(';'))
14                    message.To.Add(s);
15                SmtpClient client = new SmtpClient();
16                client.Credentials = new NetworkCredential(textbox4.Text, textBox5.Text);
17                client.Host = "smtp.gmail.com";
18                client.Port = 587;
19                client.EnableSsl = true;
20                client.Send(message);
21            }
22            catch 
23            {
24                MessageBox.Show("There was an error sending the message please make sure you entered all the right information and have a active connection to the internet");
25            }
26            finally
27            {
28                button1.Enabled = true; 
29            }
30        }