控制台输出这些是。。。[ActiveJob] [ActionMailer::MailDeliveryJob] [1871d1ba-ebe1-4880-b71e-8bb752c44371] Performing ActionMailer::MailDeliveryJob (Job ID: 1871d1ba-ebe1-4880-b71e-8bb752c44371) from Async(mailers) enqueued at 2019-11-14T10:55:38Z with arguments: "UserMailer", "account_activation", "deliver_now!", {:args=>[#>]}
dd
...难