1
我有多部分/混合体的邮件包含嵌套的多部分/相关部分与Html部分和相关的图像部分。有没有办法将这些电子邮件构建为System.Net.Mail的MailMessage实例？如何使用system.net.mail发送非替代性的多个部分
这不是一个备用查询问题。
- multipart/mixed 1.1。多部分/相关 1.1.1。 text/html 1.1.2。图片/ gif 1.2。多部分/相关 1.2.1。 text/html 1.2.2。 image/gif
1.1.1与1.1.2相关。但它与1.2.2无关。 1.1.1和1.2.1是独立的html实体。
我在下面粘贴了一条示例消息。
Message-ID: <[email protected]>
Date: Wed, 04 Apr 2000 04:18:00 +0200
From: MHTML <[email protected]>
MIME-Version: 1.0
To: [email protected]
Subject: Test message no. 11
Content-Type: multipart/mixed; boundary="==boundary-2"
--==boundary-2
Content-Type: multipart/related; boundary="==boundary-1"; type="text/html"
Content-Location: http://www.dsv.su.se/jpalme/mimetest/
Text displayed only to non-MIME-compliant mailers
--==boundary-1
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD><TITLE>Test message no. 11 first part</TITLE>
</HEAD>
<BODY>
<H1>This is test message no. 11 first HTML part</H1>
<H2>Here comes the red test image:</H2>
<IMG SRC="http://www.dsv.su.se/jpalme/mimetest/red-test-image.gif"
BORDER=0 HEIGHT=32 WIDTH=117 ALT="red test image">
<P>This is the last line of this test message.
</BODY></HTML>
--==boundary-1
Content-Type: image/gif
Content-ID: <[email protected]>
Content-Location: http://www.dsv.su.se/jpalme/mimetest/red-test-image.gif
Content-Transfer-Encoding: base64
Content-Disposition: inline; filename="red-test-image.gif"
R0lGODlhdQAgAPcAAP//////zP//mf//Zv//M///AP/M///MzP/Mmf/MZv/MM//MAP+Z//+Z
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GsuiXct2hNq2cMVmXdkzZ12LLe/ehYrXpsy/MPUGHvw04lzCdhFbzasYMd+aUxsnnrzTq1uw
cTN3tVrxrebPWDGDHr3UM+nTHE2jXn1RNevXEl3Dfi179urDJrte5BzVcknNhyNHZiyzJnGv
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6s7tl2QP9b399fhNN55tbe31FYEITlRbgqAtyCBwAz5I20MUVmjhhRgyFBAAOw==
--==boundary-1--
--==boundary-2
Content-Type: multipart/related; boundary="==boundary-1"; type="text/html"
Content-Location: http://www.dsv.su.se/jpalme/mimetest/
Text displayed only to non-MIME-compliant mailers
--==boundary-1
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD><TITLE>Test message no. 11 second part</TITLE>
</HEAD>
<BODY>
<H1>This is test message no. 11 second HTML part</H1>
<H2>Here comes the yellow test image:</H2>
<IMG SRC="cid:[email protected]" BORDER=0 HEIGHT=32 WIDTH=152
ALT="yellow test image">
<P>This is the last line of this test message.
</BODY></HTML>
--==boundary-1
Content-Type: image/gif
Content-ID: <[email protected]>
Content-Transfer-Encoding: base64
Content-Disposition: inline; filename="yellow-test-image.gif"
R0lGODlhmAAgAPcAAP//////zP//mf//Zv//M///AP/M///MzP/Mmf/MZv/MM//MAP+Z//+Z
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--==boundary-1--
--==boundary-2--
我知道lumisoft的库。我看过像MimeKit这样的其他开源软件。由于我的要求，我不得不开发自己的解析器。如果我能解决上述问题，那将是完美的。 –
我看不到MailMessage将允许解析或构建复杂的消息，所以你不能这样做。为什么你需要这么拼命MailMessage？那你为什么不做自己的课？如果您需要SmtpClient类，那么这是一个问题，但如果使用一些免费的可用库，则您可以编写自己的SMTP客户端。 – user2959922