persist events to store (cosmos or storage etc...)
Right now you can persist events to a storage account when an event is dead-lettered.
It would be great if we could persist ALL events to some storage like (cosmosdb) would be insanely useful to implement patterns like event-sourcing, for example.
Doing this at the domain or topic level would also be very useful. Specific event topics could be persisted to a cosmosdb container.
A requirement of this would be that the delivery of the events to the store be guaranteed.