On the latest master branch, emails are not being delivered in my local development environment unless I deselect the ‘queue jobs’ site setting. If I execute the job from the console it still works as expected. If I check out an earlier version it also works as expected. I’m not sure what is going on with this.
This is by design, see:
In particular launch sidekiq with:
bin/sidekiq -q critical -q default -q low
The reason this stopped working is that you are only starting a “default” queue by default and lots of emails actually get queued in the “critical” queue and “low” queue.
Perhaps a PR to update any dev guide out there?