C#之SYSTEM.NET.MAIL类演示例子

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Threading.Tasks;
 9 using System.Windows.Forms;
10 using System.Net.Mail;
11 
12 namespace WindowsFormsApplication2
13 {
14     public partial class Form1 : Form
15     {
16         public Form1()
17         {
18             InitializeComponent();
19         }
20 
21         private void button1_Click(object sender, EventArgs e)
22         {
23             string file = "E:\\bar.txt";
24             MailAddress from = new MailAddress("aguncn@163.com");
25             MailAddress to = new MailAddress(textBox2.Text);
26             MailMessage message = new MailMessage(from, to);
27             message.Subject = textBox1.Text;
28             message.Body = richTextBox1.Text;
29             Attachment myAttachment = new Attachment(file, System.Net.Mime.MediaTypeNames.Application.Octet);
30             System.Net.Mime.ContentDisposition disposition = myAttachment.ContentDisposition;
31             disposition.CreationDate = System.IO.File.GetCreationTime(file);
32             disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
33             disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
34             message.Attachments.Add(myAttachment);
35             SmtpClient client = new SmtpClient("smtp.163.com", 25);
36             client.Credentials = new System.Net.NetworkCredential("aguncn@163.com", "********");
37             client.Send(message);
38             MessageBox.Show("发送成功");
39 
40         }
41     }
42 }