I've configured monolog to send errors via email as described in the symfony docs here: https://symfony.com/doc/4.3/logging/monolog_email.html
Works well with all errors happing during a request, as well as console command errors. But it does not send emails for errors which occurred during the handling of a messenger message.
Errors are shown when running the consumer bin/console messenger:consume async -vv and they also show up in prod.log like this:
[2020-01-10 12:52:38] messenger.CRITICAL: Error thrown while handling message...
Thanks for any hints on how to set up monolog to get messenger errors emailed too.