monolog: handlers: main: type: fingers_crossed action_level: error handler: grouped grouped: type: group members: [streamed, console, buffered] streamed: type: stream path: "%kernel.logs_dir%/%kernel.environment%.log" level: debug console: type: console buffered: type: buffer handler: swift swift: type: swift_mailer from_email: info@example.com to_email: error@example.com subject: An Error Occurred! level: debug swiftmailer: #port: 587 #encryption: tls delivery_address: 'dev@example.com'