Error in exception handler: Expected response code 354 but got code "550", with message "550-5.4.5 Daily user sending limit exceeded. For more information on Gmail
550-5.4.5 sending limits go to
550 5.4.5  https://support.google.com/a/answer/166852 o14-20020a637e4e000000b005f80aced5f3sm10530714pgn.0 - gsmtp
" in /var/www/triptio.net/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:383