Send email by jmail or CDO according to configuration

    项目做完在客户公司实施时,发现用jmail发不了邮件, 尝试用CDO, 发送成功.
    为了防止CDO发邮件不成功, 写了一个方法,根据配置文件来决定使用Jmail还是CDO来发送邮件.
    当Web.Config中的MailSender的key 值为1时,用CDO来发,为2时用Jmail来发.
    WebConfig配置(appSettings):
     <!-- Mail Sender 1 - CDO , 2 - Jmail -->
     <add key="MailSender" value="1" />

        SendEmailBase a method to send email for all SendMail() methods in SupplierBasePage#region SendEmailBase a method to send email for all SendMail() methods in SupplierBasePage
        /**//// <summary>
        /// a method to send email for all SendMail() methods
        /// Send Email by JMail or CDO, determined by configuration
        /// </summary>
        /// <param name="emailTo"></param>
        /// <param name="emailToName"></param>
        /// <param name="content"></param>
        /// <returns></returns>
        protected bool SendEmailBase(string emailTo,string emailToName,string content,string subject)
        {
            bool result = false;
            try
            {
                if (Configuration.MailSender=="1")
                {
                    result = SendEmailByCDO(emailTo,emailToName,content,subject);
                }
                else
                {
                    result = SendEmailByJmail(emailTo,emailToName,content,subject);
                }

                
            }
            catch(Exception _ex)
            {
                throw _ex;
            }
            
            return result;
        }
        #endregion

一下是用jmail及CDO发email的代码:

        SendEmailByCDO#region SendEmailByCDO
        /**//// <summary>
        /// Send Email By CDO
        /// </summary>
        /// <param name="emailTo"></param>
        /// <param name="emailToName"></param>
        /// <param name="content"></param>
        /// <returns></returns>
        protected bool SendEmailByCDO(string emailTo,string emailToName,string content,string subject)
        {        

            bool Ret = false;
            try
            {
                if (emailTo==null)                     
                {
                    return Ret;
                }

                CDO.Message oMsg = new CDO.MessageClass();
                oMsg.From = Configuration.From;
                oMsg.Subject = subject;
                oMsg.HTMLBody = content;
                
                oMsg.To  = emailTo;


                CDO.IConfiguration iConfg = oMsg.Configuration;
                ADODB.Fields oFields = iConfg.Fields;

                oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"].Value        = "2" ;
                oFields["http://schemas.microsoft.com/cdo/configuration/sendemailaddress"].Value = Configuration.From ;
                oFields["http://schemas.microsoft.com/cdo/configuration/smtpaccountname"].Value  = Configuration.FromName ;
                oFields["http://schemas.microsoft.com/cdo/configuration/sendusername"].Value     = Configuration.UserAccount ;
                oFields["http://schemas.microsoft.com/cdo/configuration/sendpassword"].Value     = Configuration.UserPassword ;
                oFields["http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"].Value = "1" ;
                oFields["http://schemas.microsoft.com/cdo/configuration/languagecode"].Value     = "0x0804" ;
                oFields["http://schemas.microsoft.com/cdo/configuration/smtpserver"].Value       = Configuration.SMTPServer ;
                oFields["http://schemas.microsoft.com/cdo/configuration/smtpserverport"].Value   = Configuration.Port ;
                
                oFields.Update();
                oMsg.BodyPart.Charset="utf-8";
                oMsg.HTMLBodyPart.Charset="utf-8"; 

                oMsg.Send();
                oMsg = null;

                Ret = true;
            }
            catch(Exception ex)
            {
                throw ex;
            }

            return Ret;


        }
        #endregion

        SendEmailByJmail#region SendEmailByJmail
        /**//// <summary>
        /// Send Email By Jmail
        /// </summary>
        /// <param name="emailTo"></param>
        /// <param name="emailToName"></param>
        /// <param name="content"></param>
        /// <returns></returns>
        protected bool SendEmailByJmail(string emailTo,string emailToName,string content,string subject)
        {
            bool result = false;
            try
            {
                
                jmail.Message jmessage=new jmail.MessageClass();

                jmessage.MailServerUserName= Configuration.UserAccount;
                jmessage.MailServerPassWord=  Configuration.UserPassword;

                jmessage.Logging = true;
                jmessage.Charset="utf-8";
                jmessage.ContentType = "text/html";
                jmessage.Subject = subject;
                jmessage.From = Configuration.From;
                jmessage.FromName = Configuration.FromName;


                jmessage.AddRecipient(emailTo,emailToName,"");

                //jmessage.AddRecipient("futurefu@benq.com","Future","");

                //jmessage.HTMLBody = MailString.MailBody(externaluser,MailTemplate.SUNotification);


                jmessage.HTMLBody = content;

                bool success;

                int tryTimes = 6;// 6 for default, if configured, use the configure value

                try
                {
                    tryTimes = Convert.ToInt32(Configuration.TryTimes);
                }
                catch
                {
                }
                
                
                for(int i=0;i< tryTimes;i++)
                {
                    success = jmessage.Send(Configuration.SMTPServer,false) ;
                    if(success==true)
                    {
                        result = true;
                        break;
                    }
                    else if(i == tryTimes-1 )
                    {
                        result = false;
                        CommonFunction.MessageBox
                            ("Failed to send notification email upon modification, Please contact your IFSZ PUR Responsible person! ");
                    }
                }                

                jmessage.Close();

            }
            catch(Exception _ex)
            {
                throw _ex;
            }

            return result;

        }
        #endregion