On 20/06/2019 10:35, Nicolas Kovacs wrote: > Le 20/06/2019 à 11:28, Alexander Dalloz a écrit : >> What is being logged when a message passes your MTA inbound? The answer >> to your issue is within the maillog. > According to maillog, the message is delivered instantly, exactly like > on a normal configuration without Postgrey. > Only have experience of Fedora, but your case should be similar. When Postgrey is installed, there's a whole stack of whitelisted sites in /etc/postfix/postgrey_whitelist_clients, you should clear these, restart Postgrey and check logs with cat /var/log/maillog | grep postgrey Hope this helps