Kratos courier: Failing message stalls queue
Today I was debugging a weird issue reported from @xeruf. They didn't recieve any emails anymore from kratos when using the recovery function. Turns out they had one non-existing email addr which kratos tried over and over to deliver, which stalled the whole message queue. Unfortunatly, this bug is pushed from release to release, so hope it will some day get fixed.
This means: If any user has a typo in their email addr, the whole password recovery is disfunctional.
I'm creating this issue mainly as a reminder of the upstream bug, so we don't forget about it.