From owner-freebsd-questions@FreeBSD.ORG Mon May 13 07:08:22 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id C1CAD70A for ; Mon, 13 May 2013 07:08:22 +0000 (UTC) (envelope-from mueller6724@bellsouth.net) Received: from nm27.access.bullet.mail.sp2.yahoo.com (nm27.access.bullet.mail.sp2.yahoo.com [98.139.44.154]) by mx1.freebsd.org (Postfix) with ESMTP id A3555A26 for ; Mon, 13 May 2013 07:08:22 +0000 (UTC) Received: from [98.139.44.103] by nm27.access.bullet.mail.sp2.yahoo.com with NNFMP; 13 May 2013 07:08:16 -0000 Received: from [67.195.14.108] by tm8.access.bullet.mail.sp2.yahoo.com with NNFMP; 13 May 2013 07:08:16 -0000 Received: from [127.0.0.1] by smtp105.sbc.mail.gq1.yahoo.com with NNFMP; 13 May 2013 07:08:16 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bellsouth.net; s=s1024; t=1368428896; bh=RUmlNK9tNdL6BiHWcpnrgL9zPfUlezoS3kzfiSbM8Kk=; h=X-Yahoo-Newman-Id:Message-ID:Date:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:X-Rocket-Received:From:To:References:Subject; b=j9/YxN0KYwWcdYiGpSFbIqIEo+lsOSxYMmZ/Ni+DhQsPnB65FYLaD34pesUEFynZlYTO1BoAjo29IvLTMnd257kBXBic+25u8b02lLx6kKcnRUKwyU6OkPQybMJZ248EQW8sRbchcc84V5cCr6EaRs7nMDC5kVTCLBFLKWnFegs= X-Yahoo-Newman-Id: 56859.67369.bm@smtp105.sbc.mail.gq1.yahoo.com Message-ID: <56859.67369.bm@smtp105.sbc.mail.gq1.yahoo.com> Date: Mon, 13 May 2013 00:08:16 -0700 (PDT) X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: myuMnQYVM1nrhP51IJqfOQGfeQN.ETPZADaAK9dpL7AZ52q 1Y_F8kQoGT_Iw5.rnfgzQFKHA4PcdnySMT_OZYyH2kMn_kYGz14WOZ7EaXwE grGBdZ.c0E4TwtnPcGC0.dtB1SABA7Fyg.TtyvB9kIGUIgkOKBQ7sD3C45lJ PWAZNdIjUVFuVBKlcKYV4V8AiD0lQm5wq_y.9wAbp.CVBGXYe..K6TFP4VpE .46Cgf.DnbrNhLYNIu14AH1yopCeKPEk976QFuXSv.nf8npw93PxTcbJoPri aml0ChNhvVLnLLuIHvT.q453Yy4qpBcANo1E5o1DV5mfPZNATy07IZUhF.tx Tbd.De4TbWN6x_6L9fVyvAWay9wdxk6JOz2Dt5koAiOGD0GQkGzcuisCzoWf QyREGIGOwvYbvzxqeC82I4NoCmNcnIW_SvBm1.bvETJ4moWLhoSljtFIzlJL AshWnlcIWV1wsG41WXfu.gHg6wQgN6ChQc90fX80W8s44TAs2q5RbE6lPE5z f8ofT4o_45SyPaRfpHJ7.tCfkjnbJxJqmiE9gakJvIi6Am2PlUi.msPfpH7o teI8A3xv6IsX2ZfWYQlgo9oE5PEUtmT.Rzev51Hr5MYjOBNyvqZES_0EgkLS XkxNNojSeRAkODRLj0G7hBR17ik2SnJGfbp4MiGaSNs6v X-Yahoo-SMTP: Kz_aW1.swBBYof3zAD7.RWzXz9ZAQVDMml1VADsbgPT4Kq79LC0- X-Rocket-Received: from localhost (mueller6724@74.130.198.7 with plain) by smtp105.sbc.mail.gq1.yahoo.com with SMTP; 13 May 2013 00:08:15 -0700 PDT From: "Thomas Mueller" To: freebsd-questions@FreeBSD.org References: <20130512120452.GA27244@gsp.org> Subject: Re: List Spam Filtering X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 May 2013 07:08:22 -0000 Excerpt from Rich Kulawiec : > 3. Note that Mailman, as part of that same mechanism, allows list-owners > to add non-subscribers to a list of those permitted to send traffic to > the list without approval. This feature is probably more often used to > allow traffic from alternative addresses for subscribers, e.g., someone > is subscribed as fred@example.com but sends occasionally from fred@example.net. > But it can just as easily be used for non-subscribers if the list-owners > so choose. I sometimes send using a different SMTP server, which may happen since my @bellsouth.net addresses are from my former ISP, AT&T/Yahoo!, but still good under Yahoo! So I might send either from the AT&T/Yahoo! SMTP server or from insightbb.com server, and Insight Cable (insightbb.com) customers will be migrated in the next month to Time Warner Cable, and email addresses will be in twc.com domain. But I use the same From: address. I switched my email address on this list because Insight Cable, but I believe not Time Warner Cable, uses synacor.com for spam filtering, and messages are deleted when synacor.com's software flags it as spam, and there were false positives resulting in bounced messages. Insight Cable customers never see the spam-filtered-out messages, and have no way to mitigate those filters. On sending CC to other participants in a thread, sometimes that can be too many, and I might consider it redundant to send CC to a list regular. Once, because of sending CC to other thread participants, I was sending to six email addresses, and the message was held for moderator approval because of being sent to so many recipients: a frequent characteristic of spam. But my message was approved when the moderator saw it was legit, on topic. Tom