使用带有gmail smtp的C＃发送电子邮件，使用不同的电子邮件 [英] Sending email using C# with gmail smtp, with different email

问题描述

亲爱的所有

我使用gmail smtp发送电子邮件（gmail地址： no- [e-mail]和密码= ???? ）使用以下源代码，它工作正常。

当我从" [e-mail]" ;,在接收方"来自电子邮件"字段包含  [e-mail]< [e-mail]>

 

何时    接收方想通过点击"回复"来回复该电子邮件。链接
然后  [e-mail] 插入  " to email "字段 。

我想要当接收者点击" 回复"链接  然后  [e-mail]
要插入"到电子邮件"字段而不是"no-reply @ ...."

 

 

 

  public   class  MailSender 
 {
  public  静态  bool  SendEmail（
  string  来自  / * [e-mail] * / ，
  string  pTo，
  string  pSubject，
  string  pBody，
 System.Web.Mail.MailFormat pFormat，
  string  pAttachmentPath）
 {
 尝试 
 {
 System.Web.Mail.MailMessage myMail =  new 系统。 Web.Mail.MailMessage（）; 
 myMail.Fields.Add 
（" http://schemas.microsoft.com/cdo/configuration/smtpserver" ，
 " smtp.gmail.com" ）; 
 myMail.Fields.Add 
（" http://schemas.microsoft.com/cdo/configuration/smtpserverport" ，
 " 465" ）; 
 myMail.Fields.Add 
（" http://schemas.microsoft.com/cdo/configuration/sendusing" ，
 " 2" ）; 
  // sendusing：cdoSendUsingPort，value 2，用于发送消息 
  //网络。 
 
  // smtpauthenticate：指定验证时使用的机制 
  //到SMTP  
  //通过网络提供的服务。可能的值为： 
  //  -  cdoAnonymous，值0.不进行身份验证。 
  //  -  cdoBasic，value 1.使用基本的明文身份验证。  
  //使用此选项时，您必须提供用户名和密码 
  //通过sendusername和sendpassword字段。 
  //  -  cdoNTLM，值2.当前进程安全上下文用于 
  //使用服务进行身份验证。 
 myMail.Fields.Add 
（" http://schemas.microsoft.com/cdo/configuration/smtpauthenticate" ，" 1" ）; 
  //使用0表示匿名 
 myMail.Fields.Add 
（" ; http：//schemas.microsoft.com/cdo/configuration/sendusername" ，
 "   [e-mail]" ）; 
 myMail.Fields.Add 
（" http://schemas.microsoft.com/cdo/configuration/sendpassword" ，
 " ??????????????"）; 
 myMail.Fields.Add 
（" http://schemas.microsoft.com/cdo/configuration/smtpusessl" ，
 " true" ）; 
 myMail.From = " [e-mail]" ; 
 myMail.To = pTo; 
 myMail.Subject = pSubject; 
 myMail.BodyFormat = pFormat; 
 myMail.Body = pBody; 
  if （pAttachmentPath.Trim（）！= "" ）
 {
 MailAttachment MyAttachment = 
  new  MailAttachment（pAttachmentPath）; 
 myMail.Attachments.Add（MyAttachment）; 
 myMail.Priority = System.Web.Mail.MailPriority.High; 
} 
 
 System.Web.Mail.SmtpMail.SmtpServer = " smtp.gmail.com：465" ; 
 System.Web.Mail.SmtpMail.Send（myMail）; 
 
 myMail =  null ; 
 
  return   true ; 
} 
  catch （Exception ex）
 {
 Sprang.General.Library.throwException（ex.Message）; 
} 
 返回  false ; 
} 
} 
 

解决方案

这似乎是gmail上的配置问题。 Gmail根本不允许您发送与您的登录地址不同的电子邮件地址。 （这是一个很好的设置，否则我们会收到很多人欺骗来自地址的垃圾邮件！）

另一个问题：MailMessage实现IDisposable - 你应该处理MailMessage实例（试试看） / finally block 或using关键字）。在变量超出范围之前设置null的引用也根本不需要。

有亲切的问候，

Konrad

Dear All

I am sending email using gmail smtp (gmail address:[e-mail] and password=????) using following source code, it works fine.

When I send email from "[e-mail]", on receiver side "from email" field contains [e-mail] <[e-mail]>

 

when  receiver want to reply that email by clicking on "reply" link then [e-mail] inserting to "to email" field.

I want when receiver click on "reply" link then [e-mail] to be inserted in "to email" field instead of "no-reply@...."

 

 

 

 public class MailSender
    {
        public static bool SendEmail(
            string from /*[e-mail]*/,
            string pTo,
            string pSubject,
            string pBody,
            System.Web.Mail.MailFormat pFormat,
            string pAttachmentPath)
        {
            try
            {
                System.Web.Mail.MailMessage myMail = new System.Web.Mail.MailMessage();
                myMail.Fields.Add
                    ("http://schemas.microsoft.com/cdo/configuration/smtpserver",
                                  "smtp.gmail.com");
                myMail.Fields.Add
                    ("http://schemas.microsoft.com/cdo/configuration/smtpserverport",
                                  "465");
                myMail.Fields.Add
                    ("http://schemas.microsoft.com/cdo/configuration/sendusing",
                                  "2");
                //sendusing: cdoSendUsingPort, value 2, for sending the message using 
                //the network.

                //smtpauthenticate: Specifies the mechanism used when authenticating 
                //to an SMTP 
                //service over the network. Possible values are:
                //- cdoAnonymous, value 0. Do not authenticate.
                //- cdoBasic, value 1. Use basic clear-text authentication. 
                //When using this option you have to provide the user name and password 
                //through the sendusername and sendpassword fields.
                //- cdoNTLM, value 2. The current process security context is used to 
                // authenticate with the service.
                myMail.Fields.Add
                ("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
                //Use 0 for anonymous
                myMail.Fields.Add
                ("http://schemas.microsoft.com/cdo/configuration/sendusername",
                    "[e-mail]");
                myMail.Fields.Add
                ("http://schemas.microsoft.com/cdo/configuration/sendpassword",
                     "??????????????");
                myMail.Fields.Add
                ("http://schemas.microsoft.com/cdo/configuration/smtpusessl",
                     "true");
                myMail.From = "[e-mail]";
                myMail.To = pTo;
                myMail.Subject = pSubject;
                myMail.BodyFormat = pFormat;
                myMail.Body = pBody;
                if (pAttachmentPath.Trim() != "")
                {
                    MailAttachment MyAttachment =
                            new MailAttachment(pAttachmentPath);
                    myMail.Attachments.Add(MyAttachment);
                    myMail.Priority = System.Web.Mail.MailPriority.High;
                }

                System.Web.Mail.SmtpMail.SmtpServer = "smtp.gmail.com:465";
                System.Web.Mail.SmtpMail.Send(myMail);

                myMail = null;

                return true;
            }
            catch (Exception ex)
            {
                Sprang.General.Library.throwException(ex.Message);
            }
            return false;
        }
    }

解决方案

That seems to be an configuration issue on gmail. Gmail simply does not allow you to send emails with different from address than your login address. (Which is a good setting else we would receive a lot of spam of people spoofing the from address!)

And another issue: MailMessage implements IDisposable - you should dispose MailMessage instances (using a try/finally block or the using keyword). And setting a reference to null before the variable goes out of scope is also not required at all.

With kind regards,

Konrad

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