Implements the ActiveSupport::LogSubscriber for logging notifications when email is delivered and received.

Methods
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Instance Public methods
deliver(event)

An email was delivered.

# File actionmailer/lib/action_mailer/log_subscriber.rb, line 8
def deliver(event)
  info do
    recipients = Array(event.payload[:to]).join(', ')
    "\nSent mail to #{recipients} (#{event.duration.round(1)}ms)"
  end

  debug { event.payload[:mail] }
end
logger()

Use the logger configured for ActionMailer::Base

# File actionmailer/lib/action_mailer/log_subscriber.rb, line 33
def logger
  ActionMailer::Base.logger
end
process(event)

An email was generated.

# File actionmailer/lib/action_mailer/log_subscriber.rb, line 24
def process(event)
  debug do
    mailer = event.payload[:mailer]
    action = event.payload[:action]
    "\n#{mailer}##{action}: processed outbound mail in #{event.duration.round(1)}ms"
  end
end
receive(event)

An email was received.

# File actionmailer/lib/action_mailer/log_subscriber.rb, line 18
def receive(event)
  info { "\nReceived mail (#{event.duration.round(1)}ms)" }
  debug { event.payload[:mail] }
end