using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace LogTest
{
/// <summary>
/// 邮件帮助类
/// </summary>
public class MailHelper
{
/// <summary>
/// 邮件服务器地址
/// </summary>
private static string MailServer = "smtp.ym.163.com";
/// <summary>
/// 用户名
/// </summary>
private static string MailUserName = "sendbug@infoearth.cn";
/// <summary>
/// 密码
/// </summary>
private static string MailPassword = "infoearth123";
/// <summary>
/// 名称
/// </summary>
private static string MailName = "邮件中心";
/// <summary>
/// 同步发送邮件
/// </summary>
/// <param name="to">收件人邮箱地址</param>
/// <param name="subject">主题</param>
/// <param name="body">内容</param>
/// <param name="encoding">编码</param>
/// <param name="isBodyHtml">是否Html</param>
/// <param name="enableSsl">是否SSL加密连接</param>
/// <returns>是否成功</returns>
public static bool Send(string to, string subject, string body, string encoding = "UTF-8", bool isBodyHtml = true, bool enableSsl = false)
{
try
{
MailMessage message = new MailMessage();
// 接收人邮箱地址
message.To.Add(new MailAddress(to));
message.From = new MailAddress(MailUserName, MailName);
message.BodyEncoding = Encoding.GetEncoding(encoding);
message.Body = body;
//GB2312
message.SubjectEncoding = Encoding.GetEncoding(encoding);
message.Subject = subject;
message.IsBodyHtml = isBodyHtml;

SmtpClient smtpclient = new SmtpClient(MailServer, 25);
smtpclient.Credentials = new System.Net.NetworkCredential(MailUserName, MailPassword);
//SSL连接
smtpclient.EnableSsl = enableSsl;
smtpclient.Send(message);
return true;
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
return false;
}
}

/// <summary>
/// 异步发送邮件 独立线程
/// </summary>
/// <param name="to">邮件接收人</param>
/// <param name="title">邮件标题</param>
/// <param name="body">邮件内容</param>
/// <param name="port">端口号</param>
/// <returns></returns>
public static void SendByThread(string to, string title, string body, int port = 25)
{
new Thread(new ThreadStart(delegate ()
{
try
{
SmtpClient smtp = new SmtpClient();
//邮箱的smtp地址
smtp.Host = MailServer;
//端口号
smtp.Port = port;
//构建发件人的身份凭据类
smtp.Credentials = new NetworkCredential(MailUserName, MailPassword);
//构建消息类
MailMessage objMailMessage = new MailMessage();
//设置优先级
objMailMessage.Priority = MailPriority.High;
//消息发送人
objMailMessage.From = new MailAddress(MailUserName, "提醒", System.Text.Encoding.UTF8);
//收件人
objMailMessage.To.Add(to);
//标题
objMailMessage.Subject = title.Trim();
//标题字符编码
objMailMessage.SubjectEncoding = System.Text.Encoding.UTF8;
//正文
objMailMessage.Body = body.Trim();
objMailMessage.IsBodyHtml = true;
//内容字符编码
objMailMessage.BodyEncoding = System.Text.Encoding.UTF8;
//发送
smtp.Send(objMailMessage);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}

})).Start();
}
}
}


 



发送邮件调用: MailHelper.Send("receivebug@learun.cn", " 邮件主题", "邮件内容");