Postfix Queue Management
Inspect, retry, hold, release, and remove queued mail safely.
Production note: Back up configuration, run
postfix check, and stage changes before reloading.Inspect queues
postqueue -p
postqueue -j | head
postcat -q QUEUE_IDRetry
postqueue -f
postqueue -i QUEUE_IDHold and release
postsuper -h QUEUE_ID
postsuper -H QUEUE_IDDelete carefully
postsuper -d QUEUE_ID
# Never use -d ALL without confirming scope