# host 1.2.3.4
4.3.2.1.in-addr.arpa domain name pointer mail.domain.vn.
# dig +short txt domain.vn
"v=spf1 a mx ptr -all"
# dig +short txt mail.domain.vn
"v=spf1 a -all"
Este é um cabeçalho de e-mail marcado como Spam:
Delivered-To: [email protected]
Received: by 10.223.30.6 with SMTP id s6csp119326fac;
Sat, 19 May 2012 22:16:56 -0700 (PDT)
Received: by 10.68.218.72 with SMTP id pe8mr55329860pbc.45.1337491015749;
Sat, 19 May 2012 22:16:55 -0700 (PDT)
Return-Path: <[email protected]>
Received: from mail.domain.vn (mail.domain.vn. [1.2.3.4])
by mx.google.com with ESMTP id on9si20572118pbc.80.2012.05.19.22.16.53;
Sat, 19 May 2012 22:16:54 -0700 (PDT)
Received-SPF: pass (google.com: domain of [email protected] designates 1.2.3.4 as permitted sender) client-ip=1.2.3.4;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 1.2.3.4 as permitted sender) [email protected]; dkim=pass [email protected]
Received: from [192.168.1.98] (unknown [113.168.221.170])
by mail.domain.vn (Postfix) with ESMTP id A8668BFB017E
for <[email protected]>; Sun, 20 May 2012 12:16:52 +0700 (ICT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mail.domain.vn;
s=domain; t=1337491012;
bh=xeWEA29llkhrwCuYBQwWIkwsgpy5OY/Y/H4z1kGGqQo=;
h=Message-ID:Date:From:MIME-Version:To:Subject:Content-Type;
b=RZeb6BnXRbfSmU4V/SPWtbCKgIbMs19V/CmtkMO4XnA4tnom0Iip/52IvYiS86Fki
ZyFob5CoqOj5AJ4jLe5wDB2OcrAtuhhJsgGL6bkDy6PW1W9jW99FxuUN+dZsw/Q0Xb
Z8gSgUARIR6+M4nH8ziGJJB7z/Jimo68FIo8kw1o=
Message-ID: <[email protected]>
Date: Sun, 20 May 2012 12:16:28 +0700
From: Anonymous <[email protected]>
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:10.0.1) Gecko/20120308 Thunderbird/10.0.1
MIME-Version: 1.0
To: [email protected]
Subject: inbox or spam
Content-Type: multipart/alternative;
boundary="------------000702010609020201020909"
Meu endereço IP não está listado em SBL, PBL, XBL da Spamhaus.
Eu posso enviar e-mail para o Yahoo Inbox normalmente.
Qualquer outra coisa devo verificar?
ATUALIZAÇÃO: sex 25 de maio 14:35:15 ICT 2012
Meu endereço IP costumava ser listado no Spamhaus PBL. Parece que o Google atualiza o PBL mais devagar do que o Yahoo. Tenho que esperar de 24 a 48 horas para ver meu e-mail acessar a Caixa de entrada do Gmail.
Agora é outro problema: Meu desenvolvedor precisa reescrever o remetente para um domínio diferente, ex: [email protected]
. Eu criei o registro SPF para este:
$ dig +short txt anotherdomain.vn
"v=spf1 ip4:mail.server.ip.address ~all"
e editou o main.cf
para algo assim:
/etc/postfix/main.cf:
smtpd_sender_restrictions =
permit_sasl_authenticated
permit_mynetworks
check_sender_access hash:/etc/postfix/sender_access
/etc/postfix/sender_access:
anotherdomain.vn OK
Criando o arquivo hash db, recarregando o Postfix e enviando um e-mail de teste para o Google, mas ele vai para Spam:
Received-SPF: pass (google.com: domain of [email protected] designates 1.2.3.4 as permitted sender) client-ip=1.2.3.4;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 1.2.3.4 as permitted sender) [email protected]; dkim=pass [email protected]
Abaixo da linha de assunto, vejo isso:
mailed-by: anotherdomain.vn
signed-by: mail.domain.vn
Devo configurar algo mais para anotherdomain.vn
?
Responder a @John Gardeniers:
Gerei outro par de chaves para anotherdomain.vn
. Editado /etc/opendkim/KeyTable
e /etc/opendkim/SigningTable
, adicione a chave pública ao DNS ... e aqui está o novo cabeçalho:
Delivered-To: [email protected]
Received: by 10.223.30.6 with SMTP id s6csp472554fac;
Fri, 25 May 2012 08:33:55 -0700 (PDT)
Received: by 10.68.203.40 with SMTP id kn8mr33031655pbc.162.1337960033592;
Fri, 25 May 2012 08:33:53 -0700 (PDT)
Return-Path: <[email protected]>
Received: from mail.domain.vn (mail.domain.vn. [x.x.x.x])
by mx.google.com with ESMTPS id ir6si6494603pbc.292.2012.05.25.08.33.51
(version=TLSv1/SSLv3 cipher=OTHER);
Fri, 25 May 2012 08:33:52 -0700 (PDT)
Received-SPF: pass (google.com: domain of [email protected] designates x.x.x.x as permitted sender) client-ip=x.x.x.x;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates x.x.x.x as permitted sender) [email protected]; dkim=pass [email protected]
Received: from mail.domain.vn (mail.domain.vn [127.0.0.1])
by mail.domain.vn (Exchange Server) with ESMTP id 978FFBFB019D
for <[email protected]>; Fri, 25 May 2012 22:33:49 +0700 (ICT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=anotherdomain.vn;
s=xxx; t=1337960029;
bh=qfxlWfMGs8sEsiA6P/+nz3wGHymeJRPwzSRAcM0IwrM=;
h=Date:From:To:Subject:Reply-To:Message-ID:Mime-Version:
Content-Type;
b=UyV+F3c6cBLs8RPcf+vfeXLfX5sVERRP2Nv4Oya3Ca7Nt29YBN3wBM7cixPFg4jNw
++G/ueOGvQWWs+NdF0pB6zesf6WHVvixRvqZsLbmgyGBPbPgLv02Pn1wrW8t8gsZUg
snB5xvVdcYzrhym/ALxdwc2qYkapo4YwZRMsH/og=
Received: from webserver.hostname.vn (hostname [y.y.y.y])
by mail.domain.vn (Exchange Server) with ESMTP id 7A09EBFB0181
for <[email protected]>; Fri, 25 May 2012 22:33:49 +0700 (ICT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=anotherdomain.vn;
s=selector; t=1337960029;
bh=FWgVv5TXS9iT+yQB2k4/8O/fCcyX2ZhMJstt6RnzW38=;
h=Date:From:To:Subject:Reply-To:Message-ID:Mime-Version:
Content-Type;
b=lcq2y13ZRNIfHzEU/vsfWpb9uo86rJnEtKtY2I3mUQOsV9lmejJamxxaYspCHWSCI
hcxbqFitvFn0rD3X3uMsLTrmb+fPX24Bk0s/20DYmKuTb3/C6RC7ya7t0ZzgXOKTBV
jYZ8gKpG1gwG38Mc+8oMmfhWi5TqQqtk6Ole4KW4=
User-Agent: CodeIgniter
Date: Fri, 25 May 2012 22:33:49 +0700
From: "No-Reply" <[email protected]>
To: [email protected]
Subject: =?utf-8?Q?=c4=90=c4=83ng_k=c3=bd_th=c3=a0nh_vi=c3=aan?=
Reply-To: "[email protected]" <[email protected]>
X-Sender: [email protected]
X-Mailer: CodeIgniter
X-Priority: 3 (Normal)
Message-ID: <[email protected]>
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="B_ALT_4fbfa65d682f1"
X-Virus-Scanned: ClamAV using ClamSMTP
Os mailed-by
e signed-by
já apontam para o mesmo domínio:
mailed-by: anotherdomain.vn
signed-by: anotherdomain.vn
mas ainda é sinalizado como spam pelo Google.
ATUALIZAÇÃO: Sábado 26 de maio 13:38:58 ICT 2012
Eu 'pedi emprestado' um servidor de e-mail de departamento diferente que está funcionando bem. Belows é o cabeçalho ao enviar um email (vai para a caixa de entrada):
Delivered-To: [email protected]
Received: by 10.182.7.136 with SMTP id j8csp194826oba;
Fri, 25 May 2012 21:23:14 -0700 (PDT)
Received: by 10.68.231.36 with SMTP id td4mr3649336pbc.141.1338006193731;
Fri, 25 May 2012 21:23:13 -0700 (PDT)
Return-Path: <[email protected]>
Received: from example.vn ([public.ip])
by mx.google.com with ESMTPS id hc10si8220019pbc.121.2012.05.25.21.23.13
(version=TLSv1/SSLv3 cipher=OTHER);
Fri, 25 May 2012 21:23:13 -0700 (PDT)
Received-SPF: softfail (google.com: domain of transitioning [email protected] does not designate public.ip as permitted sender) client-ip=public.ip;
Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning [email protected] does not designate public.ip as permitted sender) [email protected]
Received: from anotherdomain.vn (unknown [private.ip])
(Authenticated sender: [email protected])
by example.vn (Postfix) with ESMTP id 2A55B680292
for <[email protected]>; Sat, 26 May 2012 11:23:11 +0700 (ICT)
X-DomainKeys: Sendmail DomainKeys Filter v1.0.2 x.vn 2A55B680292
X-DKIM: Sendmail DKIM Filter v2.8.3 x.vn 2A55B680292
User-Agent: CodeIgniter
Date: Sat, 26 May 2012 11:23:10 +0700
From: "x" <[email protected]>
To: [email protected]
Subject: =?utf-8?Q?=c4=90=c4=83ng_k=c3=bd_th=c3=a0nh_vi=c3=aan?=
Reply-To: "[email protected]" <[email protected]>
X-Sender: [email protected]
X-Mailer: CodeIgniter
X-Priority: 3 (Normal)
Message-ID: <[email protected]>
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="B_ALT_4fc05aae7aba0"
O que me surpreendeu é spf=softfail
.
ATUALIZAÇÃO: seg 28 de maio 10:36:06 ICT 2012
Eu tenho tentado com outro domínio que não tem SPF nem a SigningTable do OpenDKIM. No /var/log/maillog
, vejo algo assim:
opendkim[22200]: (unknown-jobid): no signing table match for '[email protected]'
Não há signed-by
e mailed-by
na seção "Mostrar detalhes", mas esse e-mail vai para a Caixa de entrada (do Google e do Yahoo).
Eu realmente não tenho ideias sobre como funciona o mecanismo de filtro de spam do Google.