“SMTP传入数据超时” 在 Windows XP 中使用 Indy 10 发送包含内嵌图像的电子邮件时
出现错误“SMTP 传入数据超时”，我使用 Indy 10 的 tiburon 分支和以下代码来发送带有内联图像的电子邮件：
MB := TIdMessageBuilderHtml.Create;
try
MB.PlainText.Assign(Text);
MB.Html.Assign(FHTML);
MB.HtmlFiles.Add('c:\Path\to\My\Image.jpg');
MB.FillMessage(IdMessage);
finally
MB.Free;
end;
if not IdSMTP.Connected then
IdSMTP.Connect;
IdSMTP.Send(IdMessage);
当我尝试在 Windows XP 中发送带有内联图像的电子邮件时， 在 Windows XP 中，在 Windows Vista 中，电子邮件和内嵌图像发送得很好。
显然它没有向服务器发送任何内容，它似乎在发送之前卡住了图像编码。
这是调用堆栈：
IdReplySMTP 497 +1 TIdReplySMTP.RaiseReplyError
IdTCPConnection 574 +1 TIdTCPConnection.RaiseExceptionForLastCmdResult
IdTCPConnection 724 +10 TIdTCPConnection.CheckResponse
IdTCPConnection 563 +2 TIdTCPConnection.GetResponse
IdTCPConnection 583 +4 TIdTCPConnection.SendCmd
IdTCPConnection 696 +4 TIdTCPConnection.SendCmd
IdSMTP 377 +2 TIdSMTP.DisconnectNotifyPeer
IdTCPConnection 517 +5 TIdTCPConnection.Disconnect
IdSMTP 476 +2 TIdSMTP.Disconnect
IdTCPConnection 828 +2 TIdTCPConnection.Disconnect
Email 130 +11 TEmail.Destroy
System 9806 +1 TObject.Free
EnviarEmail 322 +38 TFormEnviarEmail.Enviar
System 12106 +38 @HandleFinally
RtlUnwind
System 11589 +83 @HandleAnyException
KiUserExceptionDispatcher
RtlAppendUnicodeToString
IdMessageClient 873 +4 EncodeAttachment
IdMessageClient 1213 +252 TIdMessageClient.SendBody
IdMessageClient 1244 +283 TIdMessageClient.SendBody
IdMessageClient 1269 +12 TIdMessageClient.SendMsg
IdSMTPBase 251 +6 TIdSMTPBase.SendNoPipelining
IdSMTPBase 436 +4 TIdSMTPBase.InternalSend
IdSMTPBase 457 +1 TIdSMTPBase.Send
IdSMTP 415 +6 TIdSMTP.Send
IdSMTPBase 449 +6 TIdSMTPBase.Send
有关导致此问题的原因以及如何解决问题的任何线索吗？
谢谢。
I'm getting the error "SMTP incoming data timeout" when I try to send an email with inline images in Windows XP, I'm using the tiburon branch of Indy 10 with the following code to send emails with inline images:
MB := TIdMessageBuilderHtml.Create;
try
MB.PlainText.Assign(Text);
MB.Html.Assign(FHTML);
MB.HtmlFiles.Add('c:\Path\to\My\Image.jpg');
MB.FillMessage(IdMessage);
finally
MB.Free;
end;
if not IdSMTP.Connected then
IdSMTP.Connect;
IdSMTP.Send(IdMessage);
It just happens in Windows XP, in Windows Vista the email and the inline image are sent just fine.
Apparently it isn't sending anything to the server, it appears to become stuck enconding the image before sending.
Here is the call stack:
IdReplySMTP 497 +1 TIdReplySMTP.RaiseReplyError
IdTCPConnection 574 +1 TIdTCPConnection.RaiseExceptionForLastCmdResult
IdTCPConnection 724 +10 TIdTCPConnection.CheckResponse
IdTCPConnection 563 +2 TIdTCPConnection.GetResponse
IdTCPConnection 583 +4 TIdTCPConnection.SendCmd
IdTCPConnection 696 +4 TIdTCPConnection.SendCmd
IdSMTP 377 +2 TIdSMTP.DisconnectNotifyPeer
IdTCPConnection 517 +5 TIdTCPConnection.Disconnect
IdSMTP 476 +2 TIdSMTP.Disconnect
IdTCPConnection 828 +2 TIdTCPConnection.Disconnect
Email 130 +11 TEmail.Destroy
System 9806 +1 TObject.Free
EnviarEmail 322 +38 TFormEnviarEmail.Enviar
System 12106 +38 @HandleFinally
RtlUnwind
System 11589 +83 @HandleAnyException
KiUserExceptionDispatcher
RtlAppendUnicodeToString
IdMessageClient 873 +4 EncodeAttachment
IdMessageClient 1213 +252 TIdMessageClient.SendBody
IdMessageClient 1244 +283 TIdMessageClient.SendBody
IdMessageClient 1269 +12 TIdMessageClient.SendMsg
IdSMTPBase 251 +6 TIdSMTPBase.SendNoPipelining
IdSMTPBase 436 +4 TIdSMTPBase.InternalSend
IdSMTPBase 457 +1 TIdSMTPBase.Send
IdSMTP 415 +6 TIdSMTP.Send
IdSMTPBase 449 +6 TIdSMTPBase.Send
Any clues about what is causing it and how can I solve the problem?
Thanks.
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评论（3）
您是否确认可以使用真正的邮件客户端发送相同的邮件，最好是简单且便携且不集成到系统内部的客户端，例如 Mozilla Thunderbird 或 Opera 附带的邮件客户端？ 那里可能有防病毒/反垃圾邮件/反任何系统干扰 - 其中许多系统透明地拦截传出的 25/TCP 并对数据进行处理。
Have you confirmed you can send the same mail with a bona fide mail client, preferably a simple and portable one which doesn't integrate into the bowels of the system, like Mozilla Thunderbird or Opera's included mail client? There could be an antivirus / antispam / antiwhatever system interfering there - many of those transparently intercept outgoing 25/TCP and do stuff to the data.
如果编码不是原因，而是读取超时，您可以使用 ReadTimeOut 属性增加它：
IdSMTP1.ReadTimeOut := 20000;
If the encoding is not the reason, but a read time out, you could increase it using the ReadTimeOut property:
IdSMTP1.ReadTimeOut := 20000;
问题解决了。
我正在解析一个 HTML 文件来加载图像并将它们附加在电子邮件中，但在 Windows XP 中，路径是：
在 html 文件中，此路径是
因此内部引发了文件未找到异常并停止该过程，直到超时，Indy 没有加注。
在 Windows XP 计算机上运行的进程中附加远程调试器后，我在第一次尝试时遇到了异常。
我认为印地“吞没”例外是不正确的，但那是另一段历史了。
Problem solved.
I'm parsing an HTML file to load the images and attach them in the email, but in windows XP the path is:
And in the html file this path was
So a File not Found exception was being raised internally and stopping the process, till timeout, and Indy wasn't raising it.
After attaching a remote debugger in the process running on the Windows XP machine I got the exception in the first try.
I don't think its correct for Indy to "engulf" the exception, but that's another history.