Inspecting Postfix’s email queue
list of queued mail
Including deferred mail and pending for delivery.
command:
mailq
The command 'postqueue -p' does the same thing as 'mailq'
process the queue now
postqueue -f
The command 'postqueue -f' does the same thing as 'postfix flush'
delete / clear the queue now
postsuper -d ALL
selective delete from queue
postsuper -d ALL deferred
inspecting queue
You can view the specific message in queue if you have the id
postcat -vq F276B2C0EA8 > themessage.txt
Replace 'F276B2C0EA8' with the postfix id of your message.