```ruby
require_relative 'boot'

require 'rails/all'

unless ENV['DOCKER']
  require 'figs'
  # Don't run this initializer on travis.
  Figs.load(stage: Rails.env)
end

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module Marli
  class Application < Rails::Application
    # Initialize configuration defaults for originally generated Rails version.
    config.load_defaults 5.0

    # Autoload the lib path
    config.autoload_paths += %W(#{config.root}/lib)
    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration can go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded after loading
    # the framework and any gems in your application.
  end
end

Raven.configure do |config|
  config.dsn = ENV['SENTRY_DSN']
end
```

Configure SMTP via env vars
user
```ruby
require_relative 'boot'

require 'rails/all'

unless ENV['DOCKER']
  require 'figs'
  # Don't run this initializer on travis.
  Figs.load(stage: Rails.env)
end

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module Marli
  class Application < Rails::Application
    # Initialize configuration defaults for originally generated Rails version.
    config.load_defaults 5.0

    # Autoload the lib path
    config.autoload_paths += %W(#{config.root}/lib)
    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration can go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded after loading
    # the framework and any gems in your application.
    
    config.action_mailer.smtp_settings = {
      address:              ENV['SMTP_HOSTNAME'],
      port:                 ENV['SMTP_PORT'],
      domain:               ENV['SMTP_DOMAIN'],
      user_name:            ENV['SMTP_USERNAME'],
      password:             ENV['SMTP_PASSWORD'],
      authentication:       ENV['SMTP_AUTH_TYPE'],
      enable_starttls_auto: true
    }

  end
end

Raven.configure do |config|
  config.dsn = ENV['SENTRY_DSN']
end
```
assistant