delayed-type verified
Queue type of the ladder steps
in the configuration this is a line
delayed-type: …Whether the delay steps are declared as classic or quorum queues.
Values
- Values
classic · quorum- applying
restart required- where it can be set
in the config file · with a startup flag · as an environment variable
In detail
Observed as classic on the stand. Quorum queues replicate across broker nodes and survive the loss of one, at the cost of memory and throughput — a choice that belongs to whoever runs the broker cluster, not to the mail engine. Like every queue argument, it cannot be changed on existing queues.