Block the delivery of messages flagged as "***SPAM***" and with "From: email@example.com"
Over the past week, I've received around 10 notifications each day of "Undelivered Mail Returned to Sender". And things seem to be getting slightly worse over time.
The vast majority of them is already flagged as
Subject: RE: ***SPAM***.
To be able to identify these emails as spam attempt, I have to open the attachment manually and discard them. I understand that @intrigeri is also receiving these emails as administrator of the list and might do the same.
It's too much for me to do on my copious free time and I started discarding them automatically. This might lead us to miss a real problem and non-spam attempt at some point. I've already rescued important emails sent to other mailing lists this.
Could you configure needa.puscii.nl not to try delivery such messages when they are already flagged as
***SPAM***? I think that the leftovers would be manageable.
Here is an example:
This is the mail system at host needa.puscii.nl. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system : connect to mail.jigolo.site[184.108.40.206]:25: Connection refused Reporting-MTA: dns; needa.puscii.nl X-Postfix-Queue-ID: B3ED2146DED X-Postfix-Sender: rfc822; firstname.lastname@example.org Arrival-Date: Wed, 24 Jun 2020 14:04:07 +0200 (CEST) Final-Recipient: rfc822; email@example.com Original-Recipient: rfc822;firstname.lastname@example.org Action: failed Status: 4.4.1 Diagnostic-Code: X-Postfix; connect to mail.jigolo.site[220.127.116.11]:25: Connection refused Return-Path: Received: from localhost (localhost [127.0.0.1]) by needa.puscii.nl (Postfix) with ESMTP id B3ED2146DED for ; Wed, 24 Jun 2020 14:04:07 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at needa.puscii.nl X-Spam-Flag: NO X-Spam-Score: 0.6 X-Spam-Level: X-Spam-Status: No, score=0.6 tagged_above=-999 required=3.5 tests=[ALL_TRUSTED=-1, BAYES_50=0.8, DKIM_ADSP_ALL=0.8] autolearn=no autolearn_force=no Received: from needa.puscii.nl ([127.0.0.1]) by localhost (needa.puscii.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qTaMvJtRZcWE for ; Wed, 24 Jun 2020 14:04:06 +0200 (CEST) Received: from needa.puscii.nl (localhost [127.0.0.1]) by needa.puscii.nl (Postfix) with ESMTPS id 51A8014788A for ; Wed, 24 Jun 2020 14:04:04 +0200 (CEST) Date: Wed, 24 Jun 2020 14:04:04 +0200 From: email@example.com Sender: firstname.lastname@example.org To: LeafFilter Invention Message-ID: <email@example.com> In-Reply-To: <0.0.0.2F.1D64A1E98899FEE.82642B@mail.jigolo.site> References: <0.0.0.2F.1D64A1E98899FEE.82642B@mail.jigolo.site> Subject: RE: ***SPAM*** No more climbing the ladder every Spring | 10% off Gutter protection Mime-Version: 1.0 Content-Type: multipart/signed; boundary="--==_mimepart_5ef341338c2b8_1dbe2ad0493b05bc2699e"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit