使用异步子线程发送邮件(各种账号邮件都支持)

微笑小生

1、这里帖主分别采用的QQ、腾讯企业邮箱、outlook(包括企业邮箱)

2、废话不多说，直接上代码，这里亲自运行过，直接拷贝使用即可

[C#] 纯文本查看 复制代码

      /// <summary>
        /// 使用其它线程发送邮件，不影响主流程运行
        /// </summary>
        /// <param name="to"></param>
        /// <param name="subject"></param>
        /// <param name="body"></param>
        public static void SendTask(string to, string subject, string body)
        {
            Task.Run(async () =>
            {
                var b = await SendAsync(to, subject, body);
                Log4NetHelper.Info($@"给{to}发送邮件{(b ? "成功" : "失败")}");
            });
        }


        /// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="to"></param>
        /// <param name="subject"></param>
        /// <param name="body"></param>
        /// <returns></returns>
        public static async Task<bool> SendAsync(string to, string subject, string body)
        {
            return await SendAsync(to, "", "", subject, body, "");
        }

        /// <summary>
        /// 请求远程接口发送邮件
        /// </summary>
        /// <param name="toes">收件人，多个收件人以逗号(,)隔开</param>
        /// <param name="ces">抄送人，多个抄送人以逗号(,)隔开</param>
        /// <param name="bes">密送人，多个密送人以逗号(,)隔开</param>
        /// <param name="subject">邮件主题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="displayName">发件人邮箱别名</param>
        /// <param name="attachments">附件</param>
        /// <returns></returns>
        public static Task<bool> SendAsync(string toes, string ces, string bes, string subject, string body,
            string displayName = "", List<Attach> attachments = null)
        {
            return EmailServer.SendAsync(toes, ces, bes, subject, body, displayName, attachments);
        }
    }

        public async Task<bool> SendAsync(string toes, string ces, string bes, string subject, string body, string displayName = "",
            List<Attach> attachments = null)
        {
            var message = attachments != null && attachments.Any()
                ? CreateMessageIncludeAttach(toes, ces, bes, subject, body, displayName, attachments)
                : CreateMessage(toes, ces, bes, subject, body, displayName);
            return await SendAsync(message);
        }
  /// <summary>
        /// 发送邮件请求
        /// </summary>
        /// <param name="requestMessage"></param>
        /// <returns></returns>
        public static async Task<bool> SendAsync(HttpRequestMessage requestMessage)
        {
            ServicePointManager.SecurityProtocol =
                SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
            try
            {
                var responseMessage = await Client.SendAsync(requestMessage);
                if (responseMessage.IsSuccessStatusCode)
                {
                    var res = await responseMessage.Content.ReadAsStringAsync();
                    Log4NetHelper.Info($"邮件请求响应：{res}");
                    return res.Contains("true");
                }

                Log4NetHelper.Info($"邮件发送失败，请求响应码{responseMessage.StatusCode}");
                return false;
            }
            catch (Exception e)
            {
                Log4NetHelper.Error($"邮件发送发生异常：{e.Message}", e);
                return false;
            }
        }

3、直接调用即可，需要分批发送邮件这个最为方便了，采用的是异步进程，不会阻塞程序

ipc2008

EmailServer和Log4NetHelper这两个类提供一下？

lvmins

EmailServer 没有啊

微笑小生

ipc2008 发表于 2021-12-22 16:56
EmailServer和Log4NetHelper这两个类提供一下？

[C#] 纯文本查看 复制代码

private static readonly IEmailServer EmailServer;

        static NewEmailHelper()
        {
            //通过不通的实例化选择不同的实现方式
            // EmailServer = new ApiEmailServer();
            EmailServer = new MailKitServer();
        }

        /// <summary>
        /// 使用其它线程发送邮件，不影响主流程运行
        /// </summary>
        /// <param name="to"></param>
        /// <param name="subject"></param>
        /// <param name="body"></param>
        public static void SendTask(string to, string subject, string body)
        {
            Task.Run(async () =>
            {
                var b = await SendAsync(to, subject, body);
                Log4NetHelper.Info($@"给{to}发送邮件{(b ? "成功" : "失败")}");
            });
        }

        /// <summary>
        /// 使用其它线程发送邮件，不影响主流程运行
        /// </summary>
        /// <param name="toes"></param>
        /// <param name="ces"></param>
        /// <param name="bes"></param>
        /// <param name="subject"></param>
        /// <param name="body"></param>
        /// <param name="displayName"></param>
        /// <param name="attachments"></param>
        public static void SendTask(string toes, string ces, string bes, string subject, string body,
            string displayName = "", List<Attach> attachments = null)
        {
            Task.Run(async () =>
            {
                var b = await SendAsync(toes, ces, bes, subject, body, displayName, attachments);
                Log4NetHelper.Info($@"给{toes}发送邮件{(b ? "成功" : "失败")}");
            });
        }

        /// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="to"></param>
        /// <param name="subject"></param>
        /// <param name="body"></param>
        /// <returns></returns>
        public static async Task<bool> SendAsync(string to, string subject, string body)
        {
            return await SendAsync(to, "", "", subject, body, "");
        }

        /// <summary>
        /// 请求远程接口发送邮件
        /// </summary>
        /// <param name="toes">收件人，多个收件人以逗号(,)隔开</param>
        /// <param name="ces">抄送人，多个抄送人以逗号(,)隔开</param>
        /// <param name="bes">密送人，多个密送人以逗号(,)隔开</param>
        /// <param name="subject">邮件主题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="displayName">发件人邮箱别名</param>
        /// <param name="attachments">附件</param>
        /// <returns></returns>
        public static Task<bool> SendAsync(string toes, string ces, string bes, string subject, string body,
            string displayName = "", List<Attach> attachments = null)
        {
            return EmailServer.SendAsync(toes, ces, bes, subject, body, displayName, attachments);
        }

log4net可以生产一个公共类，这里我只是记录错误日志，你可以采用其他的也行的

微笑小生

lvmins 发表于 2021-12-22 17:49
EmailServer 没有啊

已经发到评论区了，多谢支持