From owner-freebsd-questions@freebsd.org Wed Jun 12 16:32:00 2019 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A2F6915BBA38 for ; Wed, 12 Jun 2019 16:32:00 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47B05849B0 for ; Wed, 12 Jun 2019 16:32:00 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from smtp.infracaninophile.co.uk (smtp.infracaninophile.co.uk [81.2.117.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp.infracaninophile.co.uk", Issuer "Let's Encrypt Authority X3" (verified OK)) (Authenticated sender: matthew/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id EDAF4E565 for ; Wed, 12 Jun 2019 16:31:59 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from leaf.local (unknown [IPv6:2001:8b0:151:1:9b0:effa:9db5:9f5e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: m.seaman@infracaninophile.co.uk) by smtp.infracaninophile.co.uk (Postfix) with ESMTPSA id 77A77A17E for ; Wed, 12 Jun 2019 16:31:57 +0000 (UTC) Authentication-Results: smtp.infracaninophile.co.uk/77A77A17E; dkim=none; dkim-atps=neutral Subject: Re: email whitelist suggestions To: freebsd-questions@freebsd.org References: <20190612152808.GA88512@skytracker.ca> From: Matthew Seaman Message-ID: Date: Wed, 12 Jun 2019 17:31:48 +0100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190612152808.GA88512@skytracker.ca> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 47B05849B0 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.99 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.99)[-0.986,0]; REPLY(-4.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Jun 2019 16:32:00 -0000 On 12/06/2019 16:28, David Banning wrote: > I changed the IP address for my server recently having changed my ISP, and now mail from my server is getting continuously filtered into peoples spam folders. > > I check my ip address on mxtoolbox.com fairly regularly - my IP never appears on a blacklist. > > So now I'm thinking whitelist - but I don't have the money to lay out for this type of thing - at least not a large amount. > > Anyone have a suggestion as to how to resolve my problem? > I assume you have - ensured your mailserver address is both forward and reverse resolvable in the DNS. Without a valid PTR record you aren't going to have much fun trying to do SMTP - Have updated SPF and DMARC records in the DNS to account for the new IP number - Have waited long enough for all the DNS TTLs to expire and the changed data to populate caches. Whitelisting is unlikely to help you very much. You'll find that all the usual methods to improve deliverability will give you the best results. It's also pretty important that your mail server name doesn't look like its a typical dynamically assigned residential address. Those are marked down by receiving systems on the basis that most e-mail originating from such locations is the result of virus infected hardware. In principle you might run afoul of not having established a good reputation for your new IP. In practice, if you're running a low volume system just for personal e-mail, reputation scoring is pretty unlikely have any effect on you. It's worth checking though. It is always possible that the previous user of your new IP number sent oodles of spam from it and has tarnished its reputation for a long time to come. Cheers, Matthew