ruby-on-rails – 为什么电子邮件不能与ActiveJob一起发送？

我正在将应用程序升级到Rails 4.2,因此我们可以利用ActionMailer的deliver_later方法.一切都在发展中很好.当我使用capistrano-sidekiq gem部署到我们的登台服务器时,似乎没有发送电子邮件.根据此日志,作业将排队并正确执行.

服务器是Ubuntu 14.04,通过apt-get安装了redis.

[ActiveJob] Enqueued ActionMailer::DeliveryJob (Job ID: 51ddade2-4689-40fd-aeda-7e94f7260e43) to Sidekiq(mailers) with arguments: 
"ApplicationMailer","admin_message","deliver_now","Broken Link","Testing an email from staging."
[ActiveJob] [ActionMailer::DeliveryJob] [51ddade2-4689-40fd-aeda-7e94f7260e43] Performing ActionMailer::DeliveryJob from Sidekiq(mailers) 
with arguments: "ApplicationMailer","Testing an email from staging."
[ActiveJob] [ActionMailer::DeliveryJob] [51ddade2-4689-40fd-aeda-7e94f7260e43]   Rendered application_mailer/admin_message.html.erb within  layouts/mailer (1.9ms)
[ActiveJob] [ActionMailer::DeliveryJob] [51ddade2-4689-40fd-aeda-7e94f7260e43]   Rendered layouts/mailer.html.erb (8.8ms)
[ActiveJob] [ActionMailer::DeliveryJob] [51ddade2-4689-40fd-aeda-7e94f7260e43]   Rendered application_mailer/admin_message.text.erb within layouts/mailer (0.8ms)
[ActiveJob] [ActionMailer::DeliveryJob] [51ddade2-4689-40fd-aeda-7e94f7260e43]   Rendered layouts/mailer.text.erb (3.6ms)
[ActiveJob] [ActionMailer::DeliveryJob] [51ddade2-4689-40fd-aeda-7e94f7260e43]
Sent mail to email-testing@loamstudios.com (216.8ms)
[ActiveJob] [ActionMailer::DeliveryJob] [51ddade2-4689-40fd-aeda-7e94f7260e43] Performed ActionMailer::DeliveryJob from Sidekiq(mailers) in 796.8ms

我检查了sidekiq是否正在使用ps aux |运行[sS] idekiq并且有一个条目：

deploy   15104  0.4  7.4 972692 152452 ?       Sl   10:07   0:03 sidekiq 3.5.1 sustainabilityassessment_staging [0 of 25 busy]

我还确保邮件队列在deploy.rb中存在set：sidekiq_queue,[“default”,“mailers”].

我的邮件方法：

def admin_message(subject,message)
    @message = message
    mail(to: "<address>",subject: subject)
  end

知道发生了什么或接下来我可以解决什么问题吗？

编辑：
做了一些挖掘.我在appname / current中使用RAILS_ENV = staging bundle exec sidekiq -q mailers -q default启动了sidekiq并尝试再次发送电子邮件.这次发送的电子邮件,所以capistrano-sidekiq gem启动sidekiq的方式似乎有问题.

编辑：
设置sidekiq的监控应用程序,看看我是否可以学习任何新东西.看来工作正在处理中没有问题.仍然没有收到电子邮件……

编辑：在config / environments / staging.rb中发现一个额外的config.action_mailer.raise_delivery_errors = false,阻止我看到我的错误.我现在可以看到电子邮件被拒绝了：

Net::SMTPServerBusy: 454 4.7.1 <email address>: Relay access denied

编辑：另外一条信息,在同一邮件程序上调用deliver_now.调用deliver_later会导致电子邮件被拒绝.这使我认为应用程序的SMTP设置正常.在deliver_later调用中发生了一些事情,以防止发送电子邮件.