Rails 邮件程序 mimepart 在消息正文中显示为文本

我正在使用 ActionMailer 发送测试邮件。模板正在呈现，邮件正在正常投递。唯一的问题是 Google 在消息正文中显示 mimepart 和其他标头数据。

这是邮件的代码..

def testing

    mail(:to => "[email protected] /cdn-cgi/l/email-protection",:subject => "html mailer", :content_type => "text/html") do |format|
          format.html { render 'testing' }
          format.text { render :text => "bing" }
    end
end

这是收到的电子邮件。

----==_mimepart_508fd46252b8c_8023fe595835ad0479a6 Date: Tue, 30 Oct 2012 18:51:38 +0530     
Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
Content-ID: <508fd46254ea7_8023fe595835ad0480b8@Apoorv-Parijats-MacBook-Pro-2.local.mail> 
bing ----==_mimepart_508fd46252b8c_8023fe595835ad0479a6 Date: Tue, 30 Oct 2012 18:51:38 
+0530 Mime-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding:  
7bit Content-ID: <508fd46256465_8023fe595835ad04819c@Apoorv-Parijats-MacBook-Pro-
2.local.mail> Hi bing
column 1    column 2
----==_mimepart_508fd46252b8c_8023fe595835ad0479a6--

控制台的输出 -

 Loading development environment (Rails 3.2.2)
 1.9.3-p125 :001 > RankMailer.testing.deliver
 I, [2012-10-30T18:51:38.331238 #2050]  INFO -- :   Rendered rank_mailer/testing.html.erb           
 (1.8ms)
 I, [2012-10-30T18:51:38.333117 #2050]  INFO -- :   Rendered text template (0.0ms)
 I, [2012-10-30T18:51:45.824962 #2050]  INFO -- : 
 Sent mail to [email protected] /cdn-cgi/l/email-protection (7484ms)
 D, [2012-10-30T18:51:45.825125 #2050] DEBUG -- : Date: Tue, 30 Oct 2012 18:51:38 +0530
 From: [email protected] /cdn-cgi/l/email-protection
 To: [email protected] /cdn-cgi/l/email-protection
        Message-ID: <508fd462572ec_8023fe595835ad0482c0@Apoorv-Parijats-MacBook-Pro-2.local.mail>
    Subject: html mailer
    Mime-Version: 1.0
    Content-Type: text/html;
     charset=UTF-8
    Content-Transfer-Encoding: 7bit



    ----==_mimepart_508fd46252b8c_8023fe595835ad0479a6
    Date: Tue, 30 Oct 2012 18:51:38 +0530
    Mime-Version: 1.0
    Content-Type: text/plain;
     charset=UTF-8
    Content-Transfer-Encoding: 7bit
    Content-ID: <508fd46254ea7_8023fe595835ad0480b8@Apoorv-Parijats-MacBook-Pro-2.local.mail>

    bing

    ----==_mimepart_508fd46252b8c_8023fe595835ad0479a6
    Date: Tue, 30 Oct 2012 18:51:38 +0530
    Mime-Version: 1.0
    Content-Type: text/html;
     charset=UTF-8
    Content-Transfer-Encoding: 7bit
    Content-ID: <508fd46256465_8023fe595835ad04819c@Apoorv-Parijats-MacBook-Pro-2.local.mail>

    Hi bing

    <table style="border:1px solid red">
        <tr>
            <td>column 1</td>
            <td>column 2</td>
        </tr>
    </table>

    ----==_mimepart_508fd46252b8c_8023fe595835ad0479a6--

     => #<Mail::Message:70255316899740, Multipart: false, Headers: <Date: Tue, 30 Oct 2012 18:51:38 +0530>, <From: [email protected] /cdn-cgi/l/email-protection>, <To: [email protected] /cdn-cgi/l/email-protection>, <Message-ID: <508fd462572ec_8023fe595835ad0482c0@Apoorv-Parijats-MacBook-Pro-2.local.mail>>, <Subject: html mailer>, <Mime-Version: 1.0>, <Content-Type: text/html>, <Content-Transfer-Encoding: 7bit>>

不指定:content_type => "text/html"在您的邮件方法中。由于您使用的是格式块，rails 将自动选择 mime 类型。

更多细节：

尝试发送多部分电子邮件（即电子邮件的 html 和文本格式）。注意格式的顺序。

mail(:to => "[email protected] /cdn-cgi/l/email-protection", :subject => "html mailer") do |format|
    format.text { render :text => "bing" }
    format.html { render 'testing' }
end