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本文介绍两个QQ应用中有意思的小功能，都是基于邮件对象实现的功能，一个是利用.NET 内置类MailMessage来实现日志发送功能，一个是利用Lumisoft.NET组件类来检测用户是否开通了SMTP功能。想看看两个功能的实现效果。

编辑并发送QQ日志的代码很简单，就是简单利用MailMessage对象来实现的，类似发送邮件一样，详细代码如下所示：try{MailMessage mail = new MailMessage();mail.From = new MailAddress(string.Format("{0}@qq.com", Portal.gc.QQ));mail.To.Add(new MailAddress(string.Format("{0}@qzone.qq.com", Portal.gc.QQ)));string title = this.txtTitle.Text;if (!string.IsNullOrEmpty(title)){title = string.Format("[{0}]{1}", this.txtCategory.Text, this.txtTitle.Text);}mail.Subject = title;mail.Body = this.txtContent.Text;SmtpClient client = new SmtpClient("smtp.qq.com", 25);client.Credentials = new NetworkCredential(Portal.gc.QQ, Portal.gc.QQPass);client.Send(mail);MessageExUtil.ShowTips("QQ留言发表成功！");this.txtTitle.Clear();this.txtContent.Clear();}catch (Exception ex){LogTextHelper.WriteLine(ex.ToString());MessageExUtil.ShowError(ex.Message);}批量检查开通SMTP功能的代码如下所示：private void StartAtClick(object obj){if (this.dg.Rows.Count == 0 || this.dg.SelectedRows.Count == 0){SetTips("请先输入资料，并选定一个开始");return;}string selectQQ = "";foreach (DataGridViewRow row in this.dg.SelectedRows){selectQQ = row.Cells["账号"].Value.ToString();break;}QQDict.Clear();QQList.Clear();foreach (DataGridViewRow row in this.dg.Rows){string qq = row.Cells["账号"].Value.ToString();string pass = row.Cells["密码"].Value.ToString();if (!string.IsNullOrEmpty(qq) && !QQDict.ContainsKey(qq)){QQDict.Add(qq, pass);QQList.Add(qq);}}int current = QQList.IndexOf(selectQQ);if (QQDict.Count > 0 && current >= 0){isStart = true;currentIndex = current;StartQQAt();}}private void StartQQAt(){if (!isStart || QQDict.Count == 0)return;if (currentIndex >= QQDict.Count){isStart = false;SetTips("已经是最后一个QQ");return;}string qq = QQList[currentIndex];string pass = QQDict[qq];if (!string.IsNullOrEmpty(qq)){CallCtrlWithThreadSafety.SetText(this.lblOperateTips, string.Format("正在处理QQ[{0}]...", qq), this);CallCtrlWithThreadSafety.SetText(this.txtQQNumber, qq, this);Application.DoEvents();Thread.Sleep(100);CheckSmtpOpen(qq, pass);}}private void CheckSmtpOpen(string user, string pass){bool success = CheckLogin(user, pass);if (success){SetTips(string.Format("QQ用户[{0}] 测试成功", user));if (!SuccessList.Contains(user)){SuccessList.Add(user);if (failedList.Contains(user)){failedList.Remove(user);//移除成功的数据}UpdateList();}}else{if (!failedList.Contains(user)){failedList.Add(user);UpdateList();}SetTips(string.Format("QQ用户[{0}] 测试失败，可能密码不正确或未开通SMTP", user));}Interlocked.Increment(ref currentIndex);StartQQAt();}private bool CheckLogin(string user, string pass){bool result = false;using (SMTP_Client client = new SMTP_Client()){try{//匹配使之可以用于其它邮箱string smtp = "smtp.qq.com";int atIndex = user.IndexOf("@");if (atIndex > 0){smtp = "smtp." + user.Substring(atIndex + 1);}if(user.Contains("@163.com")){user = user.Replace("@163.com", "");}client.Connect(smtp, WellKnownPorts.SMTP_SSL, true);client.Authenticate(user, pass);string helloText = client.GreetingText;if (helloText.Contains("220")){result = true;}}catch (Exception ex){;}}return result;}private void SetTips(string tips){CallCtrlWithThreadSafetyEx.SetText(this.lblOperateTips, tips);CallCtrlWithThreadSafetyEx.SetText(this.tsslTipsLable, tips);Application.DoEvents();Thread.Sleep(20);}private void UpdateList(){try{this.lstFailed.Invoke(new MethodInvoker(delegate(){this.lstFailed.Items.Clear();foreach (string item in failedList){this.lstFailed.Items.Add(item);}this.lstFailed.Refresh();}));this.lstSuccess.Invoke(new MethodInvoker(delegate(){this.lstSuccess.Items.Clear();foreach (string item in SuccessList){this.lstSuccess.Items.Add(item);}this.lstSuccess.Refresh();}));}catch (Exception ex){LogTextHelper.WriteLine(ex.ToString());}}其中利用了Lumisoft.NET的SMTP_Client对象来检测是否服务器应答的内容，如果含有220就表示支持SMTP了，呵呵，是不是很简单呢，其实上面的代码最为重要的就是下面这部分而已。using (SMTP_Client client = new SMTP_Client()){try{//匹配使之可以用于其它邮箱string smtp = "smtp.qq.com";int atIndex = user.IndexOf("@");if (atIndex > 0){smtp = "smtp." + user.Substring(atIndex + 1);}if(user.Contains("@163.com")){user = user.Replace("@163.com", "");}client.Connect(smtp, WellKnownPorts.SMTP_SSL, true);client.Authenticate(user, pass);string helloText = client.GreetingText;if (helloText.Contains("220")){result = true;}}catch (Exception ex){;}}其他部分就是为了实现一个循环机批量的过程而已。本随便介绍的功能，都已经集成的我的软件QQ搜通天系列软件中了，需要了解可以下载软件测试下，有宝贵意见可以相互沟通交流。

本文介绍两个QQ应用中有意思的小功能，都是基于邮件对象实现的功能，一个是利用.NET 内置类MailMessage来实现日志发送功能，一个是利用Lumisoft.NET组件类来检测用户是否开通了SMTP功能。想看看两个功能的实现效果。

编辑并发送QQ日志的代码很简单，就是简单利用MailMessage对象来实现的，类似发送邮件一样，详细代码如下所示：try{MailMessage mail = new MailMessage();mail.From = new MailAddress(string.Format("{0}@qq.com", Portal.gc.QQ));mail.To.Add(new MailAddress(string.Format("{0}@qzone.qq.com", Portal.gc.QQ)));string title = this.txtTitle.Text;if (!string.IsNullOrEmpty(title)){title = string.Format("[{0}]{1}", this.txtCategory.Text, this.txtTitle.Text);}mail.Subject = title;mail.Body = this.txtContent.Text;SmtpClient client = new SmtpClient("smtp.qq.com", 25);client.Credentials = new NetworkCredential(Portal.gc.QQ, Portal.gc.QQPass);client.Send(mail);MessageExUtil.ShowTips("QQ留言发表成功！");this.txtTitle.Clear();this.txtContent.Clear();}catch (Exception ex){LogTextHelper.WriteLine(ex.ToString());MessageExUtil.ShowError(ex.Message);}批量检查开通SMTP功能的代码如下所示：private void StartAtClick(object obj){if (this.dg.Rows.Count == 0 || this.dg.SelectedRows.Count == 0){SetTips("请先输入资料，并选定一个开始");return;}string selectQQ = "";foreach (DataGridViewRow row in this.dg.SelectedRows){selectQQ = row.Cells["账号"].Value.ToString();break;}QQDict.Clear();QQList.Clear();foreach (DataGridViewRow row in this.dg.Rows){string qq = row.Cells["账号"].Value.ToString();string pass = row.Cells["密码"].Value.ToString();if (!string.IsNullOrEmpty(qq) && !QQDict.ContainsKey(qq)){QQDict.Add(qq, pass);QQList.Add(qq);}}int current = QQList.IndexOf(selectQQ);if (QQDict.Count > 0 && current >= 0){isStart = true;currentIndex = current;StartQQAt();}}private void StartQQAt(){if (!isStart || QQDict.Count == 0)return;if (currentIndex >= QQDict.Count){isStart = false;SetTips("已经是最后一个QQ");return;}string qq = QQList[currentIndex];string pass = QQDict[qq];if (!string.IsNullOrEmpty(qq)){CallCtrlWithThreadSafety.SetText(this.lblOperateTips, string.Format("正在处理QQ[{0}]...", qq), this);CallCtrlWithThreadSafety.SetText(this.txtQQNumber, qq, this);Application.DoEvents();Thread.Sleep(100);CheckSmtpOpen(qq, pass);}}private void CheckSmtpOpen(string user, string pass){bool success = CheckLogin(user, pass);if (success){SetTips(string.Format("QQ用户[{0}] 测试成功", user));if (!SuccessList.Contains(user)){SuccessList.Add(user);if (failedList.Contains(user)){failedList.Remove(user);//移除成功的数据}UpdateList();}}else{if (!failedList.Contains(user)){failedList.Add(user);UpdateList();}SetTips(string.Format("QQ用户[{0}] 测试失败，可能密码不正确或未开通SMTP", user));}Interlocked.Increment(ref currentIndex);StartQQAt();}private bool CheckLogin(string user, string pass){bool result = false;using (SMTP_Client client = new SMTP_Client()){try{//匹配使之可以用于其它邮箱string smtp = "smtp.qq.com";int atIndex = user.IndexOf("@");if (atIndex > 0){smtp = "smtp." + user.Substring(atIndex + 1);}if(user.Contains("@163.com")){user = user.Replace("@163.com", "");}client.Connect(smtp, WellKnownPorts.SMTP_SSL, true);client.Authenticate(user, pass);string helloText = client.GreetingText;if (helloText.Contains("220")){result = true;}}catch (Exception ex){;}}return result;}private void SetTips(string tips){CallCtrlWithThreadSafetyEx.SetText(this.lblOperateTips, tips);CallCtrlWithThreadSafetyEx.SetText(this.tsslTipsLable, tips);Application.DoEvents();Thread.Sleep(20);}private void UpdateList(){try{this.lstFailed.Invoke(new MethodInvoker(delegate(){this.lstFailed.Items.Clear();foreach (string item in failedList){this.lstFailed.Items.Add(item);}this.lstFailed.Refresh();}));this.lstSuccess.Invoke(new MethodInvoker(delegate(){this.lstSuccess.Items.Clear();foreach (string item in SuccessList){this.lstSuccess.Items.Add(item);}this.lstSuccess.Refresh();}));}catch (Exception ex){LogTextHelper.WriteLine(ex.ToString());}}其中利用了Lumisoft.NET的SMTP_Client对象来检测是否服务器应答的内容，如果含有220就表示支持SMTP了，呵呵，是不是很简单呢，其实上面的代码最为重要的就是下面这部分而已。using (SMTP_Client client = new SMTP_Client()){try{//匹配使之可以用于其它邮箱string smtp = "smtp.qq.com";int atIndex = user.IndexOf("@");if (atIndex > 0){smtp = "smtp." + user.Substring(atIndex + 1);}if(user.Contains("@163.com")){user = user.Replace("@163.com", "");}client.Connect(smtp, WellKnownPorts.SMTP_SSL, true);client.Authenticate(user, pass);string helloText = client.GreetingText;if (helloText.Contains("220")){result = true;}}catch (Exception ex){;}}其他部分就是为了实现一个循环机批量的过程而已。本随便介绍的功能，都已经集成的我的软件QQ搜通天系列软件中了，需要了解可以下载软件测试下，有宝贵意见可以相互沟通交流。

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