Bloccare l'invio di messaggi in postfix

Per bloccare il delivery delle mail in uscita:

• The more complete solution to disable the scheduler while allowing mail to arrive as usual:

sudo postconf -e master_service_disable=qmgr.fifo in_flow_delay=0
sudo invoke-rc.d postfix reload

• To re-enable the scheduler and queue flooding safety:

sudo postconf -e master_service_disable= in_flow_delay=1
sudo invoke-rc.d postfix reload

Riferimenti

• postfix-users : Message: Re: freeze outgoing sending process.
• Postfix Delivery - wiki.mattrude.com