function of sending an email

最新推荐文章于 2021-07-14 11:42:14 发布

原创最新推荐文章于 2021-07-14 11:42:14 发布 · 982 阅读

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#email #function #string #authentication #exception

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本文介绍了一个使用 System.Web.Mail 命名空间实现的发送邮件功能的程序。该程序通过指定SMTP服务器、用户名、密码等参数来发送HTML格式的邮件，并记录发送状态。

/// <summary>
        /// 发送一封符合条件的邮件
        /// </summary>
        public void SendAnEmail(
            string SmtpServer,
            string SmtpServerUsername,
            string SmtpServerPassword,
            string fromEmail,
            string toEmail,
            string subject,
            string content,
            int sendFailTimes,
            int ResendTimes)
        {
            // 发送邮件
            System.Web.Mail.MailMessage message = new System.Web.Mail.MailMessage();
            System.Web.Mail.SmtpMail.SmtpServer = SmtpServer;
            if (SmtpServerUsername.Trim().Length > 0)
            {
                message.Fields.Add(" http://schemas.microsoft.com/cdo/configuration/smtpauthenticate ", "1"); //basic authentication
                message.Fields.Add(" http://schemas.microsoft.com/cdo/configuration/sendusername ", SmtpServerUsername.Trim()); //username
                message.Fields.Add(" http://schemas.microsoft.com/cdo/configuration/sendpassword ", SmtpServerPassword.Trim()); //password
            }
            message.BodyFormat = System.Web.Mail.MailFormat.Html;
            if (fromEmail != string.Empty)
                message.From = fromEmail;
            else
                message.From = "";
            message.To = toEmail;
            if (subject != string.Empty)
                message.Subject = subject;
            else
                message.Subject = "";
            message.Body = content;

            bool bSendSuccess = true;
            try
            {
                System.Web.Mail.SmtpMail.Send(message);
            }
            catch (Exception ex)
            {
                bSendSuccess = false;
            }
            int status = 0;// 0 还没发走（没发过或发送失败），1：正在发送， 2：已经发走
            int isClose = 0;// 1 表示关闭，0 表示没关闭
            int newSendFailTimes = sendFailTimes;
            if (bSendSuccess)
            {
                status = 2;
                isClose = 1;
            }
            else
            {
                newSendFailTimes += 1;
                if (newSendFailTimes >= ResendTimes)
                    isClose = 1;
            }
            // 更新Email状态
            Response.Write(status);
        }