From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 13CB26421B for ; Thu, 29 Oct 2020 18:49:59 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id F2D43B96B for ; Thu, 29 Oct 2020 18:49:28 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [212.186.127.180]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id 4E278B963 for ; Thu, 29 Oct 2020 18:49:28 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 0ED7145F8A for ; Thu, 29 Oct 2020 18:49:28 +0100 (CET) From: Stoiko Ivanov To: pmg-devel@lists.proxmox.com Date: Thu, 29 Oct 2020 18:49:16 +0100 Message-Id: <20201029174916.1351-1-s.ivanov@proxmox.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.097 Adjusted score from AWL reputation of From: address KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_DNSWL_MED -2.3 Sender listed at https://www.dnswl.org/, medium trust SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [utils.pm, proxmox.com] Subject: [pmg-devel] [PATCH pmg-api] reinject_email: fix connecting for ipv6-only hosts X-BeenThere: pmg-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Mail Gateway development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Oct 2020 17:49:59 -0000 When configuring PMG only with ipv6 addresses, reinject_email after processing fails to connect to the postfix/smtpd instance (with EINVAL). Setting the host to '::FFFF:127.0.0.1' fixes the issue. Tested with: * an ipv6only host (no ipv4 configured) * a host with ipv6 disabled via sysctl: ``` net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1 net.ipv6.conf.lo.disable_ipv6=1 ``` * a host with dual-stack setup Signed-off-by: Stoiko Ivanov --- reported via community forum: https://forum.proxmox.com/threads/unable-to-connect-to-localhost-at-port-10025.78199/ src/PMG/Utils.pm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/PMG/Utils.pm b/src/PMG/Utils.pm index d0654e1..c5cf7b8 100644 --- a/src/PMG/Utils.pm +++ b/src/PMG/Utils.pm @@ -211,7 +211,7 @@ sub reinject_mail { my $resmess; eval { - my $smtp = Net::SMTP->new('127.0.0.1', Port => 10025, Hello => $me) || + my $smtp = Net::SMTP->new('::FFFF:127.0.0.1', Port => 10025, Hello => $me) || die "unable to connect to localhost at port 10025"; if (defined($xforward)) { -- 2.20.1