After upgrade, I’m getting hundreds of emails from Mail-in-a-Box with the following content:
Did you ever change postfix configuration? Specifically, what’s the output of
postconf | grep notify?
Never changed anything. Just followed the official guide on upgrading the box and updating Mail-in-a-Box.
postconf | grep notify notify_classes = resource, software
Interesting. The ip is a known bad actor.
Can you verify, e.g. from the headers or mail logs, that the mail is created by your local box?
Okay, where do I see a detailed log?
They’ve been hammering my box too, happens occasionally, though I don’t get the delivery error reports. Work-around - just stop them contacting your box:
sudo iptables -I INPUT -s 220.127.116.11/23 -j REJECT --reject-with icmp-port-unreachable
PS.That will disappear on reboot, or you can remove the rule with iptables.
Okay, it stopped now.
So, I just didn’t realize it was a “spam/ddos” attach or something like that; I thought it was an error in my setup.
Thank you for your assistance.
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