From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS3215 2.6.0.0/16 X-Spam-Status: No, score=-3.3 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from hurricane.the-brannons.com (hurricane.the-brannons.com [IPv6:2602:ff06:725:1:20::25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 9693E1F852 for ; Wed, 21 Dec 2022 18:35:15 +0000 (UTC) Authentication-Results: dcvr.yhbt.net; dkim=pass (1024-bit key; unprotected) header.d=the-brannons.com header.i=@the-brannons.com header.b="czV0Iel1"; dkim-atps=neutral DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; s=hurricane; bh=f9xlSUXrTj fL9ZQPPTrL2EF7KlZAEtPyotpAQSI8OR0=; h=date:subject:to:from; d=the-brannons.com; b=czV0Iel1NPbCDHA7o6N2g5XVU6VlvWNBd35dLlhC92TdGKuu dO2L7SnU+XO3Jxe39dsxgRvY/VR9PlhoODsmGhd9NMS0fmObaTluuGv2eNruqNSTAjNzU7 OHgutC3c/p5k6+PG0Bje6NGnGUamVSM18EU0RtYbgOECihBmmwuEs= Received: by hurricane.the-brannons.com (OpenSMTPD) with ESMTPSA id 087b1f33 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO) auth=yes user=chris for ; Wed, 21 Dec 2022 10:35:13 -0800 (PST) From: Chris Brannon To: meta@public-inbox.org Subject: dovecot fronting for public-inbox-imapd + private mail groups? Autocrypt: addr=chris@the-brannons.com; prefer-encrypt=mutual; keydata= mDMEX37pCBYJKwYBBAHaRw8BAQdASkFrVm/MHGNpj7Oa+nq4b7eBg5LX5qnvS6ojH04ZE9+0LENo cmlzdG9waGVyIEJyYW5ub24gPGNocmlzQHRoZS1icmFubm9ucy5jb20+iJAEExYIADgWIQTFfzWT HzF7+QWPg09oJ1i8YNj4egUCX37pCAIbAwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgAAKCRBoJ1i8 YNj4esVsAQCJXDxhj5gZjcrNMmSH6Z+X5RDdbvsTRvS5wwQXM3g4kAEAjOrdx/fvZDiKL8dylDhU YUVVSkwWeOD2UtmYjm/QtwG4OARffukIEgorBgEEAZdVAQUBAQdAOMaQorDR8QUdM34/Q9mUyBvS 9WFK0Mb76dHyNkERx2kDAQgHiHgEGBYIACAWIQTFfzWTHzF7+QWPg09oJ1i8YNj4egUCX37pCAIb DAAKCRBoJ1i8YNj4eo/8AQC4AX6NMv65KQQU7s95T/1Y4E+Z7KTbvhKJeSjdDfj88AEA/qzPnDvl dLmqqNTqsfZCK81teOxSoNhRlhWcQ8QQ/wY= Date: Wed, 21 Dec 2022 10:35:10 -0800 Message-ID: <87r0wsli5d.fsf@the-brannons.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain List-Id: Perhaps this is a better question for the dovecot list, but I'll throw it out here in case someone else has dealt with this scenario. I self-host email, so I'm already running dovecot. I also want to publish some public-inbox archives over IMAP that are available to the world, with anonymous access. I essentially just have one public IPv4 address, so I'm limited to one public-facing IMAP server. What I'd like to do is proxy all access to groups in the inbox.* namespace to public-inbox-imapd, and open those up for anonymous access. Everything else would remain private, requiring credentials. Can it be done? Are there better ways to do it? In an ideal world, everyone would be using IPv6 by now and this wouldn't be an issue. -- Chris