C#邮件发送

1.首页要设置你的邮件账号开启了smtp Server

2.简单的3.5都显示过期的发送邮件代码

        MailMessage message = new MailMessage();
        message.From = "120554323@qq.com";
        message.BodyFormat = MailFormat.Html;
        message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
        message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "120554323@qq.com");
        message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "pengtaoo");
        SmtpMail.SmtpServer = "smtp.qq.com";
        message.To = "pt120554323@163.com";
        message.Subject = "test";
        message.Body = "teset";
        message.BodyEncoding = Encoding.GetEncoding("gb2312");
        SmtpMail.Send(message);