using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Mail;
try
{
//编码暂硬性规定为GB2312
Encoding encoding = Encoding.GetEncoding(936);
MailMessage Message = new MailMessage(
new MailAddress("自己的邮箱", "5", encoding),//第一个是发信人的地址,第二个参数是发信人
new MailAddress(TextBox1.Text));//收信人邮箱
Message.SubjectEncoding = encoding;
Message.Subject =TextBox2.Text;//标题
Message.BodyEncoding = encoding;
Message.Body = TextBox3.Text; //主体
SmtpClient smtpClient = ne...