.NET 邮件传送功能实现(smtp.qq.com)

记住端口和SMTP服务器地址（post:25,url:smtp.qq.com）

SendMail.cs

using System;
using System.Configuration;
using System.Net.Mail;
using System.Net;

namespace ParcelDistribution.BLL
{
    public class SendMail
    {
        private readonly SmtpClient _smtp;
        private MailMessage _objMailMessage;
        private static readonly string UserMail = ConfigurationSettings.AppSettings["UserMail"];
        private static readonly string Password = ConfigurationSettings.AppSettings["PassWord"];
        public SendMail()
        {
            _smtp = new SmtpClient
                {
                    EnableSsl = false,
                    Host = ConfigurationSettings.AppSettings["mailsmtp"],
                    Port = int.Parse(ConfigurationSettings.AppSettings["port"]),
                    UseDefaultCredentials = false,
                    Credentials = new NetworkCredential(UserMail, Password)
                };
        }
        /// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="title">主题</param>
        /// <param name="body">内容</param>
        /// <param name="desmail">目标邮箱</param>
        public bool SendMailtoDes(string title, string[] body, string[] desmail)
        {
            _smtp.UseDefaultCredentials = false;
            _smtp.Credentials = new NetworkCredential(UserMail, Password);

            for (int i = 0; i < desmail.Length; i++)
            {
                if (desmail[i] == null || desmail[i] == "") continue;
                _objMailMessage = new MailMessage {Priority = MailPriority.Normal, From = new MailAddress(UserMail)};
                _objMailMessage.To.Add(new MailAddress(desmail[i]));
                _objMailMessage.IsBodyHtml = true;
                _objMailMessage.Subject = title;
                _objMailMessage.Body = body[i];
                try
                {
                    _smtp.Send(_objMailMessage);
                }
                catch (Exception)
                {
                    return false;
                }
            }

            return true;

        }

    }
}

web.config配置(像数据库那样配置)

<appSettings>
        <add key="UserMail" value="595806165@qq.com"/>
        <add key="PassWord" value="@zhangweiqq"/>
        <add key="mailsmtp" value="smtp.qq.com" />
        <add key="port" value="25"/>
    </appSettings>

qq邮箱配置（运行过程中会提醒你配置的）：

ok,运行下，发送成功！