ruby-on-rails – 如何使用ActionMailer发送HTML电子邮件？

我的电子邮件erb：
data.html.erb：

<% @data.each do |error| %>
    <table>
        <% error.each_pair do |k,v| %>
            <tr>
                <td>
                    <%= k %>
                </td>
                <td>
                    <%= ap v %>
                </td>
            </tr>   
        <% end %>
    </table>
    <br />
<% end %>

我可以收到电子邮件,但是当我这样做时,它会显示为纯文本 – 而不是呈现HTML.

Action Mailer配置：

config.action_mailer.raise_delivery_errors = true

# Send emails during development
config.action_mailer.perform_deliveries = true
ActionMailer::Base.delivery_method = :sendmail

更新：必须在我的交付方式中指定内容类型：

def data(data,sent_at = Time.now)
    Time.zone = 'Eastern Time (US & Canada)'

    content_type 'text/html'
    subject     "[#{RAILS_ENV}] An error has occurred - #{Time.now.to_s("%B %d,%Y")}"
    recipients  "bugs@mydomain.com"
    from        AppConfig['from_email']
    sent_on     sent_at
    @body   =   {:data => data}
  end