C# SMTP 邮件发送

System.Web.Mail.MailMessage mail = new System.Web.Mail.MailMessage();
        try
        {
            mail.To = "接收的邮箱";
            mail.From = "发送的邮箱";
            mail.Subject = "这是主题";
            mail.BodyFormat = System.Web.Mail.MailFormat.Html;

            mail.BodyEncoding = System.Text.Encoding.UTF8,
            mail.Body = "这是内容";

            mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); //身份验证
            mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", mail.From); //邮箱登录账号,这里跟前面的发送账号一样就行
            mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "********"); //这个密码要注意:如果是一般账号,要用授权码;企业账号用登录密码
            mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 465);//端口
            mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", "true");//SSL加密
            System.Web.Mail.SmtpMail.SmtpServer = "smtp.qq.com";    //企业账号用smtp.exmail.qq.com
            System.Web.Mail.SmtpMail.Send(mail);

            //邮件发送成功
        }
        catch (Exception ex)
        {
            //失败,错误信息:ex.Message;
        }

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转载自blog.csdn.net/wei123456yang/article/details/88990609