Carlos E. R. wrote:
On the curio side, spam sent to users-es@lists.opensuse.org by non subscribed address generates a post to users-es-owner@lists.opensuse.org X-D
Hmm, that ought just to be bounced. Yes, the setting is to reject unsubscribed addresses.
I don't see how to diferentiate spam from just a person that has not subscribed.
There isn't any. A posting from a non-subscriber should just be rejected, no matter what it is.
This is bounced again:
Reporting-MTA: dns;SEYPR01MB4366.apcprd01.prod.exchangelabs.com Received-From-MTA: dns;TY0PR0101MB4141.apcprd01.prod.exchangelabs.com Arrival-Date: Tue, 18 Oct 2022 01:15:19 +0000
Final-Recipient: rfc822;zjshangkun@gmail.com Action: failed Status: 5.2.1 Diagnostic-Code: smtp;550-5.2.1 The user you are trying to contact is receiving mail at a rate that 550-5.2.1 prevents additional messages from being delivered. For more 550-5.2.1 information, please visit 550 5.2.1 https://support.google.com/mail/?p=ReceivingRatePerm hs41-20020a1709073ea900b0077e04f856a2si10172761ejc.541 - gsmtp
Okay, so our rejection message to a non-subscriber bounces too, hence the list owner is notified. -- Per Jessen, Zürich (17.0°C)