电子邮件中的附件名称和文件扩展名* .eml [英] Attachment name and file extension not working in email *.eml

问题描述

我想在 .eml 格式中创建具有多个附件的电子邮件文件。附件生成，附件内容正确。但附件始终位于 .dat 格式，文件名称为ATT00001，ATT0002等。

目前，我正在遵循此stackoverflow问题中提供的解决方案我的代码如下

PHP

  foreach（$ reports as $ pdf）{
 $ attachment = file_get_contents（auto_report_attachments\\\Template_Attachment.eml）; 
 $ attachment = str_replace（TEMPLATE_MIME_TYPE，$ pdf ['type']，$ attachment）; 
 $ attachment = str_replace（TEMPLATE_FILE_NAME，$ pdf ['filename']，$ attachment）; 
 $ attachment = str_replace（TEMPLATE_ATTACHMENT_CONTENT，base64_encode（$ pdf ['file']），$ attachment）; 
 
 $ content。= $ attachment; 
 unset（$ attachment）; 
} 
  

模板附件

   -  080107000800000609090108 
内容类型：TEMPLATE_MIME_TYPE
 name =TEMPLATE_FILE_NAME
 Content-Transfer-Encoding： base64 
 Content-Disposition：attachment; 
 filename =TEMPLATE_FILE_NAME
 
 TEMPLATE_ATTACHMENT_CONTENT 
  

$ content 是上述链接中描述的主要电子邮件标题和正文。我的 .eml 文件看起来像;

  MIME版本：1.0 
日期：星期二，2013年4月16日09:03:37 +0100 
发件人：[e-mail] 
收件人：[e-mail] 
主题：电子邮件主题
内容类型：multipart / mixed boundary =080107000800000609090108
 
这是一个包含MIME格式多个部分的消息。 
 
 --080107000800000609090108 
内容类型：text / html 
 
< p>< strong>项目名称：一些项目和身体继续... < / p为H. 
 
 
 
 --080107000800000609090108 
内容类型：application / pdf
 name =AM22831  -   -  Cover Sheet.pdf
 Content-Transfer-Encoding：base64 
 Content-Disposition：attachment; 
 =文件名 AM22831  -   - 封面Sheet.pdf 
 
 JVBERi0xLjMKMyAwIG9iago8PC9UeXBlIC9QYWdlCi9QYXJlbnQgMSAwIFIKL1Jlc291cmNlcyAyIDAgUgovQ29udGVudHMgNCAwICiUlRU9GCg == 
 
 
 
 --080107000800000609090108 
的含量-Type：application / pdf
 name =AM22831  -   -  Manufacturing Status.pdf
 Content-Transfer-Encoding：base64 
 Content-Disposition：attachment; 
 filename =AM22831  -   - 制造状态.pdf
 
 cSAxMTMuMzkgMCAwIDMwLjUzIDE0LjE3IDU1MC41OCBjbSAvSTEgRG8gUQpxIDAuMDAwIDAuMDAwIDEuMDAwIHJnIEJUIDEzMC4zOSRU9GCg == 
 
 --080107000800000609090108 
  pre> 
 
 
上述 base64 内容在 PDF中提供正确的内容文件通过选择使用 PDF阅读器打开时打开。但文件不在 .pdf 格式。对于 .xls ， .doc 和所有其他文件类型也是一样。所有的文件都以 .dat 格式与标准命名而不是指定的名称。
 
 
 
请帮我解决此附件进入所需的文件类型与指定的文件名。
 
 
 
注意： $ 64 
 
解决方案
  div> 
我找到答案我的自我..  Template_Attachment 的标题应如下
   -  080107000800000609090108 
 Content-Type：TEMPLATE_MIME_TYPE; name =TEMPLATE_FILE_NAME
 Content-Transfer-Encoding：base64 
 Content-Disposition：attachment; filename =TEMPLATE_FILE_NAME
 
 TEMPLATE_ATTACHMENT_CONTENT 
  
其中 080107000800000609090108 是这种情况下的边界，所有附件的结尾，应该有另一个 080107000800000609090108 结束电子邮件。
 
 
 
希望这将有所帮助有人有一天： - ）
 
 
 
 PS：所以实际的 .eml 文件看起来像下面这样完美的它应该做
  MIME版本：1.0 
日期：星期二，2013年4月16日09:03:37 +0100 
 From：[e-mail] 
至：[e-mail] 
主题：电子邮件主题
内容类型：multipart / mixed; boundary =080107000800000609090108
 
这是一个包含MIME格式多个部分的消息。 
 
 --080107000800000609090108 
内容类型：text / html 
 
< p>< strong>项目名称：一些项目和身体继续... < / p为H. 
 
 --080107000800000609090108 
内容类型：application / pdf; name =AM22831 Cover Sheet.pdf
内容转移编码：base64 
内容处理：附件;文件名= AM22831封面Sheet.pdf 
 
 JVBERi0xLjMKMyAwIG9iago8PC9UeXBlIC9QYWdlCi9QYXJlbnQgMSAwIFIKL1Jlc291cmNlcyAyIDAgUgovQ29udGVasdsDFDffjMBakdjKJHBzdHlsZT0iY29 = 
 
 --080107000800000609090108 
内容类型：应用/ EXCEL;名称=AM22831制造Status.xls 
含量传输编码：BASE64 
内容处置：附件;文件名= AM22831制造Status.xls 
 
 DQoNCjx0YWJsZSBib3JkZXI9IjAiPg0KPHRyPg0KPHRkIGNvbHNwYW49IjMiIHJvd3NwYW49IjIiIGFsaWduPSJjZW50ZXIiPg0KICAgIDxoMSBzdHlsZT0iY29 = 
  
 
I want to create email files in .eml format with multiple attachments in. The attachments are generated and the content of the attachments are correct. But the attachments always come in .dat format and the file names go as "ATT00001", "ATT0002".. etc

Currently I am following the solution given in this stackoverflow question and my code is as follows

PHP
   foreach($reports as $pdf){
        $attachment = file_get_contents("auto_report_attachments\\Template_Attachment.eml");
        $attachment = str_replace("TEMPLATE_MIME_TYPE", $pdf['type'], $attachment);
        $attachment = str_replace("TEMPLATE_FILE_NAME", $pdf['filename'], $attachment);
        $attachment = str_replace("TEMPLATE_ATTACHMENT_CONTENT", base64_encode($pdf['file']), $attachment);

        $content .= $attachment;
        unset($attachment);
    }
Template Attachment
--080107000800000609090108
Content-Type: "TEMPLATE_MIME_TYPE"
name="TEMPLATE_FILE_NAME"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="TEMPLATE_FILE_NAME"

TEMPLATE_ATTACHMENT_CONTENT
$content is the main email header and body as described in the above link. My .eml file looks like;
MIME-Version: 1.0
Date: Tue, 16 Apr 2013 09:03:37 +0100
From: [e-mail]
To: [e-mail]
Subject: Email subject
Content-Type: multipart/mixed; boundary="080107000800000609090108"

This is a message with multiple parts in MIME format.

--080107000800000609090108
Content-Type: text/html

<p><strong>Project Name: Some Project and the body continues...</p>



--080107000800000609090108
Content-Type: "application/pdf"
name="AM22831 -  - Cover Sheet.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="AM22831 -  - Cover Sheet.pdf"

JVBERi0xLjMKMyAwIG9iago8PC9UeXBlIC9QYWdlCi9QYXJlbnQgMSAwIFIKL1Jlc291cmNlcyAyIDAgUgovQ29udGVudHMgNCAwICiUlRU9GCg==



--080107000800000609090108
Content-Type: "application/pdf"
name="AM22831 -  - Manufacturing Status.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="AM22831 -  - Manufacturing Status.pdf"

cSAxMTMuMzkgMCAwIDMwLjUzIDE0LjE3IDU1MC41OCBjbSAvSTEgRG8gUQpxIDAuMDAwIDAuMDAwIDEuMDAwIHJnIEJUIDEzMC4zOSRU9GCg==

--080107000800000609090108
The above base64 content gives the right content in the PDF file when the file opened by selecting to open with a PDF Reader. But the files do not come in .pdf format. Same happens for .xls, .doc and all other file types. All the files come in .dat format with standard naming rather than the specified names.

Please help me to solve this attachments come in the required file type with specified file name.

NB: The base64 content in the sample .eml file is truncated
解决方案
I found the answer my self..!! The header of Template_Attachment should be as follows
--080107000800000609090108
Content-Type: TEMPLATE_MIME_TYPE;name="TEMPLATE_FILE_NAME"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;filename="TEMPLATE_FILE_NAME"

TEMPLATE_ATTACHMENT_CONTENT
Where 080107000800000609090108 is the boundary in this case and at the end of all attachments, there should be another 080107000800000609090108 to end the email.

Hope this would be helpful to somebody someday :-)

PS: so the actual .eml file would look like as follows which works perfect as it should do
MIME-Version: 1.0
Date: Tue, 16 Apr 2013 09:03:37 +0100
From: [e-mail]
To: [e-mail]
Subject: Email subject
Content-Type: multipart/mixed; boundary="080107000800000609090108"

This is a message with multiple parts in MIME format.

--080107000800000609090108
Content-Type: text/html

<p><strong>Project Name: Some Project and the body continues...</p>

--080107000800000609090108
Content-Type: application/pdf;name="AM22831 Cover Sheet.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;filename="AM22831 Cover Sheet.pdf"

JVBERi0xLjMKMyAwIG9iago8PC9UeXBlIC9QYWdlCi9QYXJlbnQgMSAwIFIKL1Jlc291cmNlcyAyIDAgUgovQ29udGVasdsDFDffjMBakdjKJHBzdHlsZT0iY29=

--080107000800000609090108
Content-Type: application/excel;name="AM22831 Manufacturing Status.xls"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;filename="AM22831 Manufacturing Status.xls"

DQoNCjx0YWJsZSBib3JkZXI9IjAiPg0KPHRyPg0KPHRkIGNvbHNwYW49IjMiIHJvd3NwYW49IjIiIGFsaWduPSJjZW50ZXIiPg0KICAgIDxoMSBzdHlsZT0iY29=


                        
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