From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 97E41138350 for ; Mon, 6 Apr 2020 16:43:20 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 465A9E102B; Mon, 6 Apr 2020 16:43:15 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id E419FE1025 for ; Mon, 6 Apr 2020 16:43:14 +0000 (UTC) Received: from [192.168.1.100] (c-98-218-46-55.hsd1.md.comcast.net [98.218.46.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: mjo) by smtp.gentoo.org (Postfix) with ESMTPSA id 8480034F081 for ; Mon, 6 Apr 2020 16:43:12 +0000 (UTC) Subject: Re: [gentoo-user] Alternate Incoming Mail Server To: gentoo-user@lists.gentoo.org References: <20200406153445.yzeewcorrb7vjtni@ad-gentoo-main> <2bc75a9f-d52c-2e08-8fd6-bd0ec301e6f2@gentoo.org> <474774D5-DAEB-4E07-BF0D-5DE2B7A712AC@antarean.org> From: Michael Orlitzky Message-ID: Date: Mon, 6 Apr 2020 12:43:10 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 In-Reply-To: <474774D5-DAEB-4E07-BF0D-5DE2B7A712AC@antarean.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Archives-Salt: d0eea71a-89f3-4762-98a1-836b63c43057 X-Archives-Hash: f6adadbabed9a857acf852889b20022f On 4/6/20 12:19 PM, J. Roeleveld wrote: > > I find that, with a backup MX, I don't seem to loose emails. > I have, however, found evidence of mailservers belonging to big ISPs not retrying emails if there is no response from the singular MX. > Well, I can't refute an anecdote without more information, but if you're worried about this you can create the same MX record twice so that the "backup" is the primary.