```ruby
# Set SMTP settings if given.
p Errbit::Config.email_delivery_method

if Errbit::Config.email_delivery_method == :smtp
  ActionMailer::Base.delivery_method = :smtp
  p "In base settings"
  ActionMailer::Base.smtp_settings = {
    :address        => Errbit::Config.smtp_address,
    :port           => Errbit::Config.smtp_port,
    :authentication => Errbit::Config.smtp_authentication,
    :user_name      => Errbit::Config.smtp_user_name,
    :password       => Errbit::Config.smtp_password,
    :domain         => Errbit::Config.smtp_domain,
  }
end

if Errbit::Config.email_delivery_method == :sendmail
  sendmail_settings = {}
  sendmail_settings[:location] = Errbit::Config.sendmail_location if Errbit::Config.sendmail_location
  sendmail_settings[:arguments] = Errbit::Config.sendmail_arguments if Errbit::Config.sendmail_arguments

  ActionMailer::Base.delivery_method = :sendmail
  ActionMailer::Base.sendmail_settings = sendmail_settings
end

# Set config specific values
(ActionMailer::Base.default_url_options ||= {}).tap do |default|
  options_from_config = {
    host: Errbit::Config.host,
    port: Errbit::Config.port,
    protocol: Errbit::Config.protocol
  }.select { |k, v| v }

  p "default values"
  p default_values

  p "merging with"
  p options_from_config

  default.reverse_merge!(options_from_config)

end
```

Revert "add debug for action mailer"
user
```ruby
# Set SMTP settings if given.
if Errbit::Config.email_delivery_method == :smtp
  ActionMailer::Base.delivery_method = :smtp
  ActionMailer::Base.smtp_settings = {
    :address        => Errbit::Config.smtp_address,
    :port           => Errbit::Config.smtp_port,
    :authentication => Errbit::Config.smtp_authentication,
    :user_name      => Errbit::Config.smtp_user_name,
    :password       => Errbit::Config.smtp_password,
    :domain         => Errbit::Config.smtp_domain,
  }
end

if Errbit::Config.email_delivery_method == :sendmail
  sendmail_settings = {}
  sendmail_settings[:location] = Errbit::Config.sendmail_location if Errbit::Config.sendmail_location
  sendmail_settings[:arguments] = Errbit::Config.sendmail_arguments if Errbit::Config.sendmail_arguments

  ActionMailer::Base.delivery_method = :sendmail
  ActionMailer::Base.sendmail_settings = sendmail_settings
end

# Set config specific values
(ActionMailer::Base.default_url_options ||= {}).tap do |default|
  options_from_config = {
    host: Errbit::Config.host,
    port: Errbit::Config.port,
    protocol: Errbit::Config.protocol
  }.select { |k, v| v }

  default.reverse_merge!(options_from_config)
end
```
assistant