From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-f65.google.com (mail-io1-f65.google.com [209.85.166.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 5F6603B2AE for ; Sun, 10 Nov 2019 13:38:34 -0500 (EST) Received: by mail-io1-f65.google.com with SMTP id j13so11976762ioe.0 for ; Sun, 10 Nov 2019 10:38:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=kX7F6pIhgej8Sn/EK+EstHxLMSn0tkCys6kUUBzySuI=; b=ukNzdpbgtDbw6LkpxEE9AWFvtEJlHboCQgyUIEJG2CjeIC/nvo+6msrAmNjHRBQPKU pwODVU/UdueYrM1WlENDCt5M3u3hbBBMD+jxzFh/zh9D3X9qmj1RoTonkZYDQzUHkev9 EroxTe08kZ8Yx4EQJ9DjIKgkfRmw0t3qlb7+IW/HZ0ZWzqZDY5/3iuu/ukY49urP9a0S 35OnCnDBW53YfPDNDFrcdmi1pqmGLmnn5qGQDNjallFPVFH3DNmrz9WCtwXP7c1pzik0 CB6358WcMCjyu/GU7ATviwXGVjVcsjt+8fClUicto8DJVWUdWP4JPnn43IVDcPAwcBqg ge9g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=kX7F6pIhgej8Sn/EK+EstHxLMSn0tkCys6kUUBzySuI=; b=VjG6LGBQi6eSGsB3NPo3a9GCERi5vKcqTG55bBzNNd829GffhS5DqN7a85eHvQy9zc epUet+6/eB7MVyn4SteLobVaXmrICFWPcIT7BPW0HXNNLYtqEaypJsueCPaBcga8at/d Pfn0YSaazCPqdXu+Evo4xoofsCFo1h1ATagbT/S32tHXwhIMxwSXHe5x36aKPBtFlSQX JTwGensKE3/Pxpk/Zc/hWZnBHTHoUuTxqp9bWHXcVRIG+kWFvkxeeHZPWp/b+LL8+gyY 0YMN7dqrUN0dtVvys+BFYMqgjZl8b5t1GbDNp0PbwsZWxBBe4XBQGmsyHoHnA7SwT0Ot oJzQ== X-Gm-Message-State: APjAAAUgHPIRu6OlJgcoVnVyd6p8s8ta4voGXJBD2yb7jIjbgtulUtKL L7TBuoIZIdCgfaUp/sbfZrSGC8MVP4ko9Kl8JCs= X-Google-Smtp-Source: APXvYqwes78Ii5sGOs/qydlE2eAvR4uHmnRHkTVZT1eIADqxhJ/zmsMSENRwp8JF/a4z5Ldi7KNDqAHfBqjyTXA2B74= X-Received: by 2002:a6b:2c15:: with SMTP id s21mr20740318ios.249.1573411113571; Sun, 10 Nov 2019 10:38:33 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Dave Taht Date: Sun, 10 Nov 2019 10:38:22 -0800 Message-ID: To: Michael Richardson Cc: bloat , John Levine Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Bloat] ipv6 now disabled for lists.bufferbloat.net X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 10 Nov 2019 18:38:34 -0000 On Sat, Nov 9, 2019 at 6:18 PM Michael Richardson wrote: > > > > On 2019-11-09 1:56 p.m., Dave Taht wrote: > > For no reason that I've been able to discern, for months and months > > now, nearly any use of ipv6 as an email transport has ended up getting > > the ipv6 address blocked in spamhaus's SBL listing, and thus a lot of > > email has been blocked. IPv4, seems ok, but for all I know > > whatever's triggering it only triggers when ipv6 is used. So I've > > given up on ipv6 and switched it over to ipv4 only. > > I'm sorry to hear that. can we still send to you on v6? > > Spamhaus is useless. Discourage it as widely as you can. They seem to > be on autopilot. > I have blackholed a few IPv6 for destinations that I can't live without, > and I've pushed ietf.org to whitelist me in to avoid their spamhaus > dependancy. The major problem is that the SBL listing uses a bunch of > other listings which nobody maintains and which have some bogus rules. > Like that SLAAC addresses as instantly suspicious. I would just like to thank everyone that helped. Notably john levine pointed me at: https://www.spamhaus.org/faq/section/Spamhaus%20CSS#426 Which said that linode, specifically, has had a tendency to gain a bad reputation in the default /64 block, and that you should request a whole /64 so you don't get caught by collateral damage. So I just did that and hopefully will turn ipv6 back on later today. ... (I have a tendency to do "IT stuff" in the wintertime, so, thinking aloud, appreciating the help, and apologetic about the noise) That said, well, I do kind of wish there was a way to get email directly "home", like in the good ole days. I have a business class static ipv4/29 from comcast, and have been thinking of finally upgrading a few modems to docsis 3.1 over the winter (any recomendations?), but sorting it all out, oy. For example that ipv4/29 is only usuable on that local "wire" and the actual IT area is 5 hops in, and port forwarding port 25, not huge on. Similarly, perhaps I could get (overly) happy about trying to use ipv6 as my default mx exchanger but I think that's out of spec. In particular, finding a modem that will somehow delegate more than a /60 would be nice. (a /56 is allocated but I've not managed to get the netgears I have to use it) I'm out of subnets. Maybe if I'm getting static business class ipv6 now I could use more. The vast majority of my campus traffic is ipv6 nowadays. It's kind of amazing, actually. One of my fws is about 75% ipv6. (my life is made more complicated by the fact that I have 5 comcast links spread around campus, and use babel with SADR to manage the ipv6 connectivity, on a lot of unnumbered routers inbetween - and of course, run cake on the openwrt firewalls in front of them) IETF homenet has put out a spec for dns prefix delegation that I don't think went anywhere, it looks like calling comcast is the only way to get reverse dns setup, still. > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat --=20 Dave T=C3=A4ht CTO, TekLibre, LLC http://www.teklibre.com Tel: 1-831-205-9740