使用ActionMailer发送多部分邮件时出现问题 [英] Problem sending multipart mail using ActionMailer

问题描述

我使用以下代码在rails中发送电子邮件：

I'm using the following code to send emails in rails:

class InvoiceMailer < ActionMailer::Base

  def invoice(invoice)
    from          CONFIG[:email]
    recipients    invoice.email
    subject       "Bevestiging Inschrijving #{invoice.course.name}"
    content_type  "multipart/alternative"

    part "text/html" do |p|
      p.body = render_message 'invoice_html', :invoice => invoice
    end

    part "text/plain" do |p|
      p.body = render_message 'invoice_plain', :invoice => invoice
    end

    pdf = Prawn::Document.new(:page_size => 'A4')
    PDFRenderer.render_invoice(pdf, invoice)
    attachment :content_type => "application/pdf", :body => pdf.render, :filename => "factuur.pdf"

    invoice.course.course_files.each do |file|
      attachment :content_type => file.content_type, :body => File.read(file.full_path), :filename => file.filename
    end
  end

end

对我来说似乎很好，电子邮件也像Gmail网页界面一样显示出来。在邮件（Apple程序）中，我只收到1个附件（应该有2个），没有文本。我似乎无法弄清楚导致的原因。

It seems fine to me, and the emails also show up like they should in the Gmail web-interface. In Mail (the Apple program), however, I get just 1 attachment (where there should be 2) and there is no text. I just can't seem to figure out what's causing it.

我从日志中复制了电子邮件：

I copied the email from the logs:

Sent mail to [e-mail]

From: [e-mail]
To: [e-mail]
Subject: Bevestiging Inschrijving Authentiek Spreken
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary=mimepart_4a5b035ea0d4_769515bbca0ce9b412a


--mimepart_4a5b035ea0d4_769515bbca0ce9b412a
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: Quoted-printable
Content-Disposition: inline



  
  
  
    
Dear sir

推荐答案

我怀疑问题是您将整个电子邮件定义为multipart / alternative，表示每个部分只是同一消息的备用视图。

I suspect the issue is you're defining the overall email as multipart/alternative, suggesting each part is just an alternate view of the same message.

我使用以下内容发送混合HTML /附有附件的普通电子邮件，似乎可以正常工作。

I use something like the following to send mixed html/plain emails with attachments, and it seems to work OK.

class InvoiceMailer < ActionMailer::Base

  def invoice(invoice)
    from          CONFIG[:email]
    recipients    invoice.email
    subject       "Bevestiging Inschrijving #{invoice.course.name}"
    content_type  "multipart/mixed"

    part(:content_type => "multipart/alternative") do |p|
      part "text/html" do |p|
        p.body = render_message 'invoice_html', :invoice => invoice
      end

      part "text/plain" do |p|
        p.body = render_message 'invoice_plain', :invoice => invoice
      end
    end

    pdf = Prawn::Document.new(:page_size => 'A4')
    PDFRenderer.render_invoice(pdf, invoice)
    attachment :content_type => "application/pdf", :body => pdf.render, :filename => "factuur.pdf"

    invoice.course.course_files.each do |file|
      attachment :content_type => file.content_type, :body => File.read(file.full_path), :filename => file.filename
    end
  end

end

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