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我有一个 Rails 应用程序，我需要一个联系表。我正在使用 mail_form gem，我可以从 rails 控制台发送邮件，但不能从表单发送邮件。遵循了几个视频和教程，但似乎没有一个可以解决这个问题。

控制器：

class ContactsController < ApplicationController

  def new
    @contact = Contact.new
  end

  def create
    @contact = Contact.new(contacts_params)
    @contact.request = request

    if @contact.deliver
      flash.now[:notice] = 'Thank you for your message. We will contact you soon!'
    else
      flash.now[:alert] = 'Cannot send message'
      render :new
    end
  end

  protected

  def contacts_params
    params.require(:contact).permit(:name, :email, :message)
  end
end

联系人.rb

class Contact < MailForm::Base
  attribute :name,      :validate => true
  attribute :email,     :validate => /\A([\w\.%\+\-]+)@([\w\-]+\.)+([\w]{2,})\z/i
  attribute :file,      :attachment => true

  attribute :message
  attribute :nickname,  :captcha  => true

  # Declare the e-mail headers. It accepts anything the mail method
  # in ActionMailer accepts.
  def headers
    {
      :subject => "My Contact Form",
      :to => "tcunha_lp@hotmail.com",
      :from => %("#{name}" <#{email}>)
    }
  end
end

服务器日志显示：

Started POST "/contacts" for 127.0.0.1 at 2019-02-19 11:40:45 +0000
Processing by ContactsController#create as HTML
 Parameters: {"utf8"=>"✓", "authenticity_token"=>"yLolqR/aOQ1T75HJr4f+DlGwbw6e67FwVoLuWNr/MIs2PdFbdx/626SUqTjw0xbb+9xmy4zg2mzZKYt9XXYNdA==", "contact"=>{"name"=>"", "email"=>"", "message"=>""}, "commit"=>"Send"}
 Rendering contacts/new.html.erb within layouts/application
 Rendered contacts/new.html.erb within layouts/application (4.6ms)
 Rendered layouts/_navbar.html.erb (0.7ms)
 Rendered layouts/_header.html.erb (53.4ms)
 Rendered layouts/_navbar.html.erb (0.2ms)
 Rendered layouts/_footer.html.erb (51.8ms)
Completed 200 OK in 767ms (Views: 761.6ms | ActiveRecord: 0.0ms)

环境配置应该没问题，因为我可以从控制台发送邮件..

有任何想法吗？

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