Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 2 Sep 2002 17:45:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 2 Sep 2002 17:45:51 -0400 Received: from mail.zmailer.org ([62.240.94.4]:23456 "EHLO mail.zmailer.org") by vger.kernel.org with ESMTP id ; Mon, 2 Sep 2002 17:45:51 -0400 Date: Tue, 3 Sep 2002 00:50:19 +0300 From: Matti Aarnio To: linux-kernel@vger.kernel.org Subject: Stupid anti-spam testings... Message-ID: <20020902215019.GB5834@mea-ext.zmailer.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 989 Lines: 22 Quite a many of vger's recipients are doing return-path verification testing for SMTP's MAIL FROM address. I would not mind that, EXCEPT that those bloody stupid things don't have any sane caches at all! VGER is sending 300+ messages per day to 3500+ recipients of linux-kernel list EVERY DAY, and every outgoing message is now getting oodles of those probes! Folks, when you deploy that kind of testers, DO VERIFY THAT THEY HAVE SANE CACHES! A positive result shall be cached for at least two hours, a negative result shall be cached for at least 30 minutes. That would send a dozen back-probes towards vger from recipient system, instead of present 300+ ! /Matti Aarnio -- who considers some cures worse than the original problem... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/