DKIM bad signature

wavoe

Verified User
Joined
Nov 21, 2007
Messages
35
Location
Belgium
Hello,

I'm seeing different topics concerning a DKIM bad signature but none of them seem to be related what I'm experiencing.

A friend of me was sending some emails through an own created application and saw in Outlook that the DKIM failed (signature did not verify), using my smtp server with an authenticated email account on the server.
I was just doing some tests, but in a simple way that I'm sending an email via a smartphone and the Roundcube web application.

When I'm sending an email via the smartphone (Android 7.0) the email has a bad DKIM signature. The email account is configured an IMAP account (also tried with POP3) and the SMTP server is also set with authentication.
If I'm sending via Roundcube I have a valid DKIM signature.

I did the test by using http://www.appmaildev.com/en/dkim
The reports below:
Email sent via smartphone:
Code:
============================================================================
This is SPF/DKIM/DMARC/RBL report generated by a test tool provided 
	by AdminSystem Software Limited.

Any problem, please contact support@emailarchitect.net
============================================================================
Report-Id: 0af4b974
Sender: hello@maartenvisser.be
Source-IP: 136.144.141.147
Validator-Version: 1.05
============================================================================
Original email header:

x-sender: hello@maartenvisser.be
x-receiver: test-0af4b974@appmaildev.com
Received: from server1.domain.be ([136.144.141.147]) by appmaildev.com with Microsoft SMTPSVC(8.5.9600.16384);
	 Mon, 4 Dec 2017 22:17:21 +0000
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Content-Type:MIME-Version:To:From:Subject:Date:
	Sender:Reply-To:Message-ID:Cc:Content-Transfer-Encoding:Content-ID:
	Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
	:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:
	List-Subscribe:List-Post:List-Owner:List-Archive;
	bh=BoJc97aAu+x3oL4kKQPVQki/plopxCmangdzmg+XEbI=; b=BkqZ3tVzF0PHncNbIol7FsbpU6
	nXOg++CZ0fS/WRs2m4lQxeu8PnnmaqoPa/J3zmZuML1hp5n2GW7Er2ut/9puw56xBTAr6uqvaYl6p
	lIUSnnq2y+YLZJ4o66yidZU4T/5BKWw+pH9waTLQHuHHZdnvBYdbHrcWgTIn91uzAaSvkb0Ix9Twb
	iP/yRZanBEQ36Zp/5Nk11Zf0HmMn5SCbUGbHvH4yA0GOI3Kpn7AZ42kdiDtacBqXc5YFQeb9qGG85
	0XqtHxha/LSDO5ewDulcFPK7i8msMJFvx0kgnkOgi/Gt+gD8nDgXRIrXtzsaFYhE1pcz7yI18Ovaw
	W4KxzrRg==;
Received: from [109.143.4.21]
	by server1.domain.be with esmtpa (Exim 4.89_1)
	(envelope-from <hello@maartenvisser.be>)
	id 1eLz3A-0004Lz-6Z
	for test-0af4b974@appmaildev.com; Mon, 04 Dec 2017 23:17:20 +0100
Date: Mon, 04 Dec 2017 23:17:15 +0100
Subject: Test
Importance: normal
From: hello <hello@maartenvisser.be>
To: test-0af4b974@appmaildev.com
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="--_com.*******.android.email_494015834094300"
X-Authenticated-Id: hello@maartenvisser.be
Return-Path: hello@maartenvisser.be
Message-ID: <VMSA018QvhnyTxAGCoR00000158@appmaildev.com>
X-OriginalArrivalTime: 04 Dec 2017 22:17:21.0577 (UTC) FILETIME=[A79B7990:01D36D4D]

============================================================================
SPF: Pass
============================================================================

SPF-Record: v=spf1 a mx ip4:136.144.141.147 -all
Sender-IP:136.144.141.147
Sender-Domain:maartenvisser.be

Query TEXT record from DNS server for: maartenvisser.be
[TXT]: v=spf1 a mx ip4:136.144.141.147 -all
Parsing SPF record: v=spf1 a mx ip4:136.144.141.147 -all

Mechanisms: v=spf1

Mechanisms: a
Testing mechanism a
Query A record from DNS server for: maartenvisser.be
[A]: 136.144.141.147
Testing CIDR: source=136.144.141.147;  136.144.141.147/128
a hit, Qualifier: +

============================================================================
DKIM: fail
============================================================================

DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Content-Type:MIME-Version:To:From:Subject:Date:
	Sender:Reply-To:Message-ID:Cc:Content-Transfer-Encoding:Content-ID:
	Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
	:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:
	List-Subscribe:List-Post:List-Owner:List-Archive;
	bh=BoJc97aAu+x3oL4kKQPVQki/plopxCmangdzmg+XEbI=; b=BkqZ3tVzF0PHncNbIol7FsbpU6
	nXOg++CZ0fS/WRs2m4lQxeu8PnnmaqoPa/J3zmZuML1hp5n2GW7Er2ut/9puw56xBTAr6uqvaYl6p
	lIUSnnq2y+YLZJ4o66yidZU4T/5BKWw+pH9waTLQHuHHZdnvBYdbHrcWgTIn91uzAaSvkb0Ix9Twb
	iP/yRZanBEQ36Zp/5Nk11Zf0HmMn5SCbUGbHvH4yA0GOI3Kpn7AZ42kdiDtacBqXc5YFQeb9qGG85
	0XqtHxha/LSDO5ewDulcFPK7i8msMJFvx0kgnkOgi/Gt+gD8nDgXRIrXtzsaFYhE1pcz7yI18Ovaw
	W4KxzrRg==;
Signed-by: hello@maartenvisser.be
Expected-Body-Hash: BoJc97aAu+x3oL4kKQPVQki/plopxCmangdzmg+XEbI=
Public-Key: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnEhWhz6bB58lwQN9zPlsxBsGGQJzjwLvcWm7/2xGQ6YSYxzvzArpekknhDu53xWIgN/dAoh72Dyqh0V6HTOk1v9P6zWcabK79EC8lE53tJh93mXea4BXnhl0j/VVygMiwRyQJ0b35OANQgNcWquZePvwSLKhYeJCY5BVT4QKIn6cVLCUs9NEWnKPwI+1CSFF9Q6AEpvAooFL4hKKT4Zcsxxxaecu9EdwRgvVUGr5Dtl6+5zMw3SErvtNM/7Gp7UAwJTcsnWsnlUv1guC68P2LyGvitSSQSkQCKn5nHV5s//X9dqgu6CAIyHZTSsvz9MhohnsU9GYwwNgO7ZhAWkvNQIDAQAB;

DKIM-Result: fail (bad signature)

============================================================================
DMARC: none
============================================================================

_dmarc.maartenvisser.be: Non-Record
Received-SPF: pass (appmaildev.com: domain of hello@maartenvisser.be designates 136.144.141.147 as permitted sender) client-ip=136.144.141.147
Authentication-Results: appmaildev.com;
    dkim=fail header.d=maartenvisser.be;
    spf=pass (appmaildev.com: domain of hello@maartenvisser.be designates 136.144.141.147 as permitted sender) client-ip=136.144.141.147;
    dmarc=none header.from=maartenvisser.be;

============================================================================
DomainKey: none
============================================================================

DomainKey-Result: none (no signature)
If DKIM result is passed, you can ignore DomainKey result: none

============================================================================
PTR: ExistsRecord
============================================================================

Sender-IP: 136.144.141.147
Query 147.141.144.136.in-addr.arpa
Host: server1.domain.be

============================================================================
RBL: NotListed
============================================================================

bl.spamcop.net:Not Listed (OK) - http://bl.spamcop.net 
cbl.abuseat.org:Not Listed (OK) - http://cbl.abuseat.org 
b.barracudacentral.org:Not Listed (OK) - http://www.barracudacentral.org/rbl/removal-request 
dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
http.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
dul.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
misc.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
smtp.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
socks.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
spam.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
web.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
zombie.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
pbl.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/pbl/ 
sbl.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/sbl/ 
xbl.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/xbl/ 
zen.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/zen/ 
ubl.unsubscore.com:Not Listed (OK) - http://www.lashback.com/blacklist/ 
rbl.spamlab.com:Not Listed (OK) - http://tools.appriver.com/index.aspx?tool=rbl 
dyna.spamrats.com:Not Listed (OK) - http://www.spamrats.com 
noptr.spamrats.com:Not Listed (OK) - http://www.spamrats.com 
spam.spamrats.com:Not Listed (OK) - http://www.spamrats.com 
cbl.anti-spam.org.cn:Not Listed (OK) - http://www.anti-spam.org.cn/?Locale=en_US 
cdl.anti-spam.org.cn:Not Listed (OK) - http://www.anti-spam.org.cn/?Locale=en_US 
dnsbl.inps.de:Not Listed (OK) - http://dnsbl.inps.de/index.cgi?lang=en 
drone.abuse.ch:Not Listed (OK) - http://dnsbl.abuse.ch 
httpbl.abuse.ch:Not Listed (OK) - http://dnsbl.abuse.ch 
korea.services.net:Not Listed (OK) - http://korea.services.net 
short.rbl.jp:Not Listed (OK) - http://www.rbl.jp 
virus.rbl.jp:Not Listed (OK) - http://www.rbl.jp 
spamrbl.imp.ch:Not Listed (OK) - http://antispam.imp.ch 
wormrbl.imp.ch:Not Listed (OK) - http://antispam.imp.ch 
virbl.bit.nl:Not Listed (OK) - http://virbl.bit.nl	 
rbl.suresupport.com:Not Listed (OK) - http://suresupport.com/postmaster 
dsn.rfc-ignorant.org:Not Listed (OK) - http://www.rfc-ignorant.org/policy-dsn.php 
spamguard.leadmon.net:Not Listed (OK) - http://www.leadmon.net/SpamGuard/ 
dnsbl.tornevall.org:Not Listed (OK) - http://opm.tornevall.org 
netblock.pedantic.org:Not Listed (OK) - http://pedantic.org 
multi.surbl.org:Not Listed (OK) - http://www.surbl.org 
ix.dnsbl.manitu.net:Not Listed (OK) - http://www.dnsbl.manitu.net 
tor.dan.me.uk:Not Listed (OK) - http://www.dan.me.uk/dnsbl 
rbl.efnetrbl.org:Not Listed (OK) - http://rbl.efnetrbl.org 
dnsbl.dronebl.org:Not Listed (OK) - http://www.dronebl.org 
access.redhawk.org:Not Listed (OK) - http://www.redhawk.org/index.php?option=com_wrapper&Itemid=33 
db.wpbl.info:Not Listed (OK) - http://www.wpbl.info 
rbl.interserver.net:Not Listed (OK) - http://rbl.interserver.net 
query.senderbase.org:Not Listed (OK) - http://www.senderbase.org/about 
bogons.cymru.com:Not Listed (OK) - http://www.team-cymru.org/Services/Bogons/ 
csi.cloudmark.com:Not Listed (OK) - http://www.cloudmark.com/en/products/cloudmark-sender-intelligence/index 


============================================================================
Original message source
============================================================================
x-sender: hello@maartenvisser.be
x-receiver: test-0af4b974@appmaildev.com
Received: from server1.domain.be ([136.144.141.147]) by appmaildev.com with Microsoft SMTPSVC(8.5.9600.16384);
	 Mon, 4 Dec 2017 22:17:21 +0000
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Content-Type:MIME-Version:To:From:Subject:Date:
	Sender:Reply-To:Message-ID:Cc:Content-Transfer-Encoding:Content-ID:
	Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
	:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:
	List-Subscribe:List-Post:List-Owner:List-Archive;
	bh=BoJc97aAu+x3oL4kKQPVQki/plopxCmangdzmg+XEbI=; b=BkqZ3tVzF0PHncNbIol7FsbpU6
	nXOg++CZ0fS/WRs2m4lQxeu8PnnmaqoPa/J3zmZuML1hp5n2GW7Er2ut/9puw56xBTAr6uqvaYl6p
	lIUSnnq2y+YLZJ4o66yidZU4T/5BKWw+pH9waTLQHuHHZdnvBYdbHrcWgTIn91uzAaSvkb0Ix9Twb
	iP/yRZanBEQ36Zp/5Nk11Zf0HmMn5SCbUGbHvH4yA0GOI3Kpn7AZ42kdiDtacBqXc5YFQeb9qGG85
	0XqtHxha/LSDO5ewDulcFPK7i8msMJFvx0kgnkOgi/Gt+gD8nDgXRIrXtzsaFYhE1pcz7yI18Ovaw
	W4KxzrRg==;
Received: from [109.143.4.21]
	by server1.domain.be with esmtpa (Exim 4.89_1)
	(envelope-from <hello@maartenvisser.be>)
	id 1eLz3A-0004Lz-6Z
	for test-0af4b974@appmaildev.com; Mon, 04 Dec 2017 23:17:20 +0100
Date: Mon, 04 Dec 2017 23:17:15 +0100
Subject: Test
Importance: normal
From: hello <hello@maartenvisser.be>
To: test-0af4b974@appmaildev.com
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="--_com.*******.android.email_494015834094300"
X-Authenticated-Id: hello@maartenvisser.be
Return-Path: hello@maartenvisser.be
Message-ID: <VMSA018QvhnyTxAGCoR00000158@appmaildev.com>
X-OriginalArrivalTime: 04 Dec 2017 22:17:21.0577 (UTC) FILETIME=[A79B7990:01D36D4D]

----_com.*******.android.email_494015834094300
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: base64

VGVzdAoKClZlcnpvbmRlbiB2YW5hZiBtaWpuIFNhbXN1bmcgR2FsYXh5LXNtYXJ0cGhvbmUu

----_com.*******.android.email_494015834094300
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: base64

PGh0bWw+PGhlYWQ+PG1ldGEgaHR0cC1lcXVpdj0iQ29udGVudC1UeXBlIiBjb250ZW50PSJ0ZXh0
L2h0bWw7IGNoYXJzZXQ9VVRGLTgiPjwvaGVhZD48Ym9keT48ZGl2PlRlc3Q8L2Rpdj48ZGl2Pjxi
cj48L2Rpdj48ZGl2Pjxicj48L2Rpdj48ZGl2Pjxicj48L2Rpdj48ZGl2IGlkPSJjb21wb3Nlcl9z
aWduYXR1cmUiPjxkaXYgc3R5bGU9ImZvbnQtc2l6ZTo4NSU7Y29sb3I6IzU3NTc1NyIgZGlyPSJh
dXRvIj5WZXJ6b25kZW4gdmFuYWYgbWlqbiBTYW1zdW5nIEdhbGF4eS1zbWFydHBob25lLjwvZGl2
PjwvZGl2PjwvYm9keT48L2h0bWw+

----_com.*******.android.email_494015834094300--

============================================================================
Email sent via Roundcube:
Code:
============================================================================
This is SPF/DKIM/DMARC/RBL report generated by a test tool provided 
	by AdminSystem Software Limited.

Any problem, please contact [email]support@emailarchitect.net[/email]
============================================================================
Report-Id: cdbe8932
Sender: [email]hello@maartenvisser.be[/email]
Source-IP: 136.144.141.147
Validator-Version: 1.05
============================================================================
Original email header:

x-sender: [email]hello@maartenvisser.be[/email]
x-receiver: [email]test-cdbe8932@appmaildev.com[/email]
Received: from server1.domain.be ([136.144.141.147]) by appmaildev.com with Microsoft SMTPSVC(8.5.9600.16384);
	 Mon, 4 Dec 2017 21:47:34 +0000
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Message-ID:Subject:To:From:Date:
	Content-Transfer-Encoding:Content-Type:MIME-Version:Sender:Reply-To:Cc:
	Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:
	Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:
	List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;
	 bh=g3zLYH4xKxcPrHOD18z9YfpQcnk/GaJedfustWU5uGs=; b=MRmJwtGMSXC+SlfFIp0Sipzul
	VJ+Wx7jHVQQi22DMGfABArw9WOyWV7qxXIeBHPlYH/j+LZJ+UPS2UBNVSu4wbpqr1Vy0Y4Da/1u+U
	r9uRG+dhbYlam3OXulwK8dPM+Q0OPMittX/v3r0EH9NFmmB0Be04xG2R+ddoYm14fzHHxmvNuWSub
	riAp3I/vXr76ZyGeGiCi484dBBc6/+6BmlEe7zIjF0AqR8yHbIC2G+qiqEocySgjB1wN2wSmaYbLT
	6Z63OdJM5wAwtFkw6Kr8YG4novV7BhjJOFOrnpMXlfax4Vr+nx8PJN9jEGEUDTeCM+KyZNhslQ8fg
	t5yl+mFLA==;
Received: from localhost ([127.0.0.1] helo=server1.domain.be)
	by server1.domain.be with esmtpa (Exim 4.89_1)
	(envelope-from <hello@maartenvisser.be>)
	id 1eLyaL-0006k5-C5
	for [email]test-cdbe8932@appmaildev.com[/email]; Mon, 04 Dec 2017 22:47:33 +0100
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII;
 format=flowed
Content-Transfer-Encoding: 7bit
Date: Mon, 04 Dec 2017 22:47:32 +0100
From: [email]hello@maartenvisser.be[/email]
To: [email]test-cdbe8932@appmaildev.com[/email]
Subject: test
Message-ID: <442510f6bf9948d5e82d0e3dc45cb731@maartenvisser.be>
X-Sender: [email]hello@maartenvisser.be[/email]
User-Agent: Roundcube Webmail/1.3.3
X-Authenticated-Id: [email]hello@maartenvisser.be[/email]
Return-Path: [email]hello@maartenvisser.be[/email]
X-OriginalArrivalTime: 04 Dec 2017 21:47:34.0529 (UTC) FILETIME=[7E719710:01D36D49]

============================================================================
SPF: Pass
============================================================================

SPF-Record: v=spf1 a mx ip4:136.144.141.147 -all
Sender-IP:136.144.141.147
Sender-Domain:maartenvisser.be

Query TEXT record from DNS server for: maartenvisser.be
[TXT]: v=spf1 a mx ip4:136.144.141.147 -all
Parsing SPF record: v=spf1 a mx ip4:136.144.141.147 -all

Mechanisms: v=spf1

Mechanisms: a
Testing mechanism a
Query A record from DNS server for: maartenvisser.be
[A]: 136.144.141.147
Testing CIDR: source=136.144.141.147;  136.144.141.147/128
a hit, Qualifier: +

============================================================================
DKIM: pass
============================================================================

DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Message-ID:Subject:To:From:Date:
	Content-Transfer-Encoding:Content-Type:MIME-Version:Sender:Reply-To:Cc:
	Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:
	Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:
	List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;
	 bh=g3zLYH4xKxcPrHOD18z9YfpQcnk/GaJedfustWU5uGs=; b=MRmJwtGMSXC+SlfFIp0Sipzul
	VJ+Wx7jHVQQi22DMGfABArw9WOyWV7qxXIeBHPlYH/j+LZJ+UPS2UBNVSu4wbpqr1Vy0Y4Da/1u+U
	r9uRG+dhbYlam3OXulwK8dPM+Q0OPMittX/v3r0EH9NFmmB0Be04xG2R+ddoYm14fzHHxmvNuWSub
	riAp3I/vXr76ZyGeGiCi484dBBc6/+6BmlEe7zIjF0AqR8yHbIC2G+qiqEocySgjB1wN2wSmaYbLT
	6Z63OdJM5wAwtFkw6Kr8YG4novV7BhjJOFOrnpMXlfax4Vr+nx8PJN9jEGEUDTeCM+KyZNhslQ8fg
	t5yl+mFLA==;
Signed-by: [email]hello@maartenvisser.be[/email]
Expected-Body-Hash: g3zLYH4xKxcPrHOD18z9YfpQcnk/GaJedfustWU5uGs=
Public-Key: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnEhWhz6bB58lwQN9zPlsxBsGGQJzjwLvcWm7/2xGQ6YSYxzvzArpekknhDu53xWIgN/dAoh72Dyqh0V6HTOk1v9P6zWcabK79EC8lE53tJh93mXea4BXnhl0j/VVygMiwRyQJ0b35OANQgNcWquZePvwSLKhYeJCY5BVT4QKIn6cVLCUs9NEWnKPwI+1CSFF9Q6AEpvAooFL4hKKT4Zcsxxxaecu9EdwRgvVUGr5Dtl6+5zMw3SErvtNM/7Gp7UAwJTcsnWsnlUv1guC68P2LyGvitSSQSkQCKn5nHV5s//X9dqgu6CAIyHZTSsvz9MhohnsU9GYwwNgO7ZhAWkvNQIDAQAB;

DKIM-Result: pass

============================================================================
DMARC: none
============================================================================

_dmarc.maartenvisser.be: Non-Record
Received-SPF: pass (appmaildev.com: domain of [email]hello@maartenvisser.be[/email] designates 136.144.141.147 as permitted sender) client-ip=136.144.141.147
Authentication-Results: appmaildev.com;
    dkim=pass header.d=maartenvisser.be;
    spf=pass (appmaildev.com: domain of [email]hello@maartenvisser.be[/email] designates 136.144.141.147 as permitted sender) client-ip=136.144.141.147;
    dmarc=none header.from=maartenvisser.be;

============================================================================
DomainKey: none
============================================================================

DomainKey-Result: none (no signature)
If DKIM result is passed, you can ignore DomainKey result: none

============================================================================
PTR: ExistsRecord
============================================================================

Sender-IP: 136.144.141.147
Query 147.141.144.136.in-addr.arpa
Host: server1.domain.be

============================================================================
RBL: NotListed
============================================================================

bl.spamcop.net:Not Listed (OK) - [url]http://bl.spamcop.net[/url] 
cbl.abuseat.org:Not Listed (OK) - [url]http://cbl.abuseat.org[/url] 
b.barracudacentral.org:Not Listed (OK) - [url]http://www.barracudacentral.org/rbl/removal-request[/url] 
dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
http.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
dul.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
misc.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
smtp.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
socks.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
spam.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
web.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
zombie.dnsbl.sorbs.net:Not Listed (OK) - [url]http://www.sorbs.net[/url] 
pbl.spamhaus.org:Not Listed (OK) - [url]http://www.spamhaus.org/pbl/[/url] 
sbl.spamhaus.org:Not Listed (OK) - [url]http://www.spamhaus.org/sbl/[/url] 
xbl.spamhaus.org:Not Listed (OK) - [url]http://www.spamhaus.org/xbl/[/url] 
zen.spamhaus.org:Not Listed (OK) - [url]http://www.spamhaus.org/zen/[/url] 
ubl.unsubscore.com:Not Listed (OK) - [url]http://www.lashback.com/blacklist/[/url] 
rbl.spamlab.com:Not Listed (OK) - [url]http://tools.appriver.com/index.aspx?tool=rbl[/url] 
dyna.spamrats.com:Not Listed (OK) - [url]http://www.spamrats.com[/url] 
noptr.spamrats.com:Not Listed (OK) - [url]http://www.spamrats.com[/url] 
spam.spamrats.com:Not Listed (OK) - [url]http://www.spamrats.com[/url] 
cbl.anti-spam.org.cn:Not Listed (OK) - [url]http://www.anti-spam.org.cn/?Locale=en_US[/url] 
cdl.anti-spam.org.cn:Not Listed (OK) - [url]http://www.anti-spam.org.cn/?Locale=en_US[/url] 
dnsbl.inps.de:Not Listed (OK) - [url]http://dnsbl.inps.de/index.cgi?lang=en[/url] 
drone.abuse.ch:Not Listed (OK) - [url]http://dnsbl.abuse.ch[/url] 
httpbl.abuse.ch:Not Listed (OK) - [url]http://dnsbl.abuse.ch[/url] 
korea.services.net:Not Listed (OK) - [url]http://korea.services.net[/url] 
short.rbl.jp:Not Listed (OK) - [url]http://www.rbl.jp[/url] 
virus.rbl.jp:Not Listed (OK) - [url]http://www.rbl.jp[/url] 
spamrbl.imp.ch:Not Listed (OK) - [url]http://antispam.imp.ch[/url] 
wormrbl.imp.ch:Not Listed (OK) - [url]http://antispam.imp.ch[/url] 
virbl.bit.nl:Not Listed (OK) - [url]http://virbl.bit.nl[/url]	 
rbl.suresupport.com:Not Listed (OK) - [url]http://suresupport.com/postmaster[/url] 
dsn.rfc-ignorant.org:Not Listed (OK) - [url]http://www.rfc-ignorant.org/policy-dsn.php[/url] 
spamguard.leadmon.net:Not Listed (OK) - [url]http://www.leadmon.net/SpamGuard/[/url] 
dnsbl.tornevall.org:Not Listed (OK) - [url]http://opm.tornevall.org[/url] 
netblock.pedantic.org:Not Listed (OK) - [url]http://pedantic.org[/url] 
multi.surbl.org:Not Listed (OK) - [url]http://www.surbl.org[/url] 
ix.dnsbl.manitu.net:Not Listed (OK) - [url]http://www.dnsbl.manitu.net[/url] 
tor.dan.me.uk:Not Listed (OK) - [url]http://www.dan.me.uk/dnsbl[/url] 
rbl.efnetrbl.org:Not Listed (OK) - [url]http://rbl.efnetrbl.org[/url] 
dnsbl.dronebl.org:Not Listed (OK) - [url]http://www.dronebl.org[/url] 
access.redhawk.org:Not Listed (OK) - [url]http://www.redhawk.org/index.php?option=com_wrapper&Itemid=33[/url] 
db.wpbl.info:Not Listed (OK) - [url]http://www.wpbl.info[/url] 
rbl.interserver.net:Not Listed (OK) - [url]http://rbl.interserver.net[/url] 
query.senderbase.org:Not Listed (OK) - [url]http://www.senderbase.org/about[/url] 
bogons.cymru.com:Not Listed (OK) - [url]http://www.team-cymru.org/Services/Bogons/[/url] 
csi.cloudmark.com:Not Listed (OK) - [url]http://www.cloudmark.com/en/products/cloudmark-sender-intelligence/index[/url] 


============================================================================
Original message source
============================================================================
x-sender: [email]hello@maartenvisser.be[/email]
x-receiver: [email]test-cdbe8932@appmaildev.com[/email]
Received: from server1.domain.be ([136.144.141.147]) by appmaildev.com with Microsoft SMTPSVC(8.5.9600.16384);
	 Mon, 4 Dec 2017 21:47:34 +0000
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Message-ID:Subject:To:From:Date:
	Content-Transfer-Encoding:Content-Type:MIME-Version:Sender:Reply-To:Cc:
	Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:
	Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:
	List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;
	 bh=g3zLYH4xKxcPrHOD18z9YfpQcnk/GaJedfustWU5uGs=; b=MRmJwtGMSXC+SlfFIp0Sipzul
	VJ+Wx7jHVQQi22DMGfABArw9WOyWV7qxXIeBHPlYH/j+LZJ+UPS2UBNVSu4wbpqr1Vy0Y4Da/1u+U
	r9uRG+dhbYlam3OXulwK8dPM+Q0OPMittX/v3r0EH9NFmmB0Be04xG2R+ddoYm14fzHHxmvNuWSub
	riAp3I/vXr76ZyGeGiCi484dBBc6/+6BmlEe7zIjF0AqR8yHbIC2G+qiqEocySgjB1wN2wSmaYbLT
	6Z63OdJM5wAwtFkw6Kr8YG4novV7BhjJOFOrnpMXlfax4Vr+nx8PJN9jEGEUDTeCM+KyZNhslQ8fg
	t5yl+mFLA==;
Received: from localhost ([127.0.0.1] helo=server1.domain.be)
	by server1.domain.be with esmtpa (Exim 4.89_1)
	(envelope-from <hello@maartenvisser.be>)
	id 1eLyaL-0006k5-C5
	for [email]test-cdbe8932@appmaildev.com[/email]; Mon, 04 Dec 2017 22:47:33 +0100
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII;
 format=flowed
Content-Transfer-Encoding: 7bit
Date: Mon, 04 Dec 2017 22:47:32 +0100
From: [email]hello@maartenvisser.be[/email]
To: [email]test-cdbe8932@appmaildev.com[/email]
Subject: test
Message-ID: <442510f6bf9948d5e82d0e3dc45cb731@maartenvisser.be>
X-Sender: [email]hello@maartenvisser.be[/email]
User-Agent: Roundcube Webmail/1.3.3
X-Authenticated-Id: [email]hello@maartenvisser.be[/email]
Return-Path: [email]hello@maartenvisser.be[/email]
X-OriginalArrivalTime: 04 Dec 2017 21:47:34.0529 (UTC) FILETIME=[7E719710:01D36D49]

test
============================================================================
I don't understand why it's a bad DKIM signature when I send an email via the smartphone.
As far as I understand the DKIM signature is added by the exim process so its unclear why it's not working properly?
I created the domain recently in the DirectAdmin account.
I'm running DA 1.52.1 with CB Version: 2.0.0 (rev: 1774), Exim 4.89_1 and eximconf 4.5.7 and exim.pl v 24 on a CentOS 7 (virtual)

Any ideas?

Thanks in advance.
 

zEitEr

Super Moderator
Joined
Apr 11, 2005
Messages
13,854
Location
GMT +7.00
Hello,

It seems you block incoming connections over IPv6 to 53. You should check your firewall settings for this. So try and disable your firewall (i.e. open all ports) and check whether or not DKIM sign gets verified.

If it does not help you might need to re-create DKIM record and/or make sure public key in DNS matches the private one.
 

wavoe

Verified User
Joined
Nov 21, 2007
Messages
35
Location
Belgium
Thanks for your comment zEitEr, the port was indeed closed (over IPv6) and it's now open.
I re-created the DKIM record via the dkim_create.sh (new public key is in the report) and tested again but it's still invalid if I send an email via the smartphone.
Via Roundcube it's still passing.

Code:
============================================================================
This is SPF/DKIM/DMARC/RBL report generated by a test tool provided 
	by AdminSystem Software Limited.

Any problem, please contact support@emailarchitect.net
============================================================================
Report-Id: a89a1796
Sender: hello@maartenvisser.be
Source-IP: 136.144.141.147
Validator-Version: 1.05
============================================================================
Original email header:

x-sender: hello@maartenvisser.be
x-receiver: test-a89a1796@appmaildev.com
Received: from server1.domain.be ([136.144.141.147]) by appmaildev.com with Microsoft SMTPSVC(8.5.9600.16384);
	 Tue, 5 Dec 2017 11:28:21 +0000
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Content-Type:MIME-Version:To:From:Subject:Date:
	Sender:Reply-To:Message-ID:Cc:Content-Transfer-Encoding:Content-ID:
	Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
	:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:
	List-Subscribe:List-Post:List-Owner:List-Archive;
	bh=As5BwEiDmRAMNTc3h/9WUQEOyB2Qj/TgZ5Fksy1ReXs=; b=j8UFsE2YdsIoCz0L/+r77ohuv+
	dY+7eFrHQLKs0IaX8DTAocX03GZErteaAL5vHXQDIzVFuwHh5iDyzdv1kw7nuz5TXyDS3dtIEHcki
	PSDvTO68X+4rEUpRBSfisKpRw6Ga+5a9FojYVau1WYe3GCmw9uYXygylIqyJ9ZymlhBmZ9HxTVSwh
	PKdEBZqrzcvmyYUDvc/su4019Xr6kuLQEgTetfqZts0FTGG3C+gE3VSBDVJQAbe0laTBKEoL/FU2n
	8edxYI7Qktiag+8Vlwp9KypDRGRpzyCXQLdJyNVIhWCRs1lbdJirrw1BVlSYT1IshoK0uv5WPWlAg
	REf+4Wuw==;
Received: from [109.133.8.213] (helo=[172.16.34.70])
	by server1.domain.be with esmtpa (Exim 4.89_1)
	(envelope-from <hello@maartenvisser.be>)
	id 1eMBOd-0004yK-KM
	for test-a89a1796@appmaildev.com; Tue, 05 Dec 2017 12:28:20 +0100
Date: Tue, 05 Dec 2017 12:28:15 +0100
Subject: Second
Importance: normal
From: hello <hello@maartenvisser.be>
To: test-a89a1796@appmaildev.com
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="--_com.*******.android.email_655987137619700"
X-Authenticated-Id: hello@maartenvisser.be
Return-Path: hello@maartenvisser.be
Message-ID: <VMSA01dvXJ9natci85P00000167@appmaildev.com>
X-OriginalArrivalTime: 05 Dec 2017 11:28:21.0458 (UTC) FILETIME=[27E69B20:01D36DBC]

============================================================================
SPF: Pass
============================================================================

SPF-Record: v=spf1 a mx ip4:136.144.141.147 -all
Sender-IP:136.144.141.147
Sender-Domain:maartenvisser.be

Query TEXT record from DNS server for: maartenvisser.be
[TXT]: v=spf1 a mx ip4:136.144.141.147 -all
Parsing SPF record: v=spf1 a mx ip4:136.144.141.147 -all

Mechanisms: v=spf1

Mechanisms: a
Testing mechanism a
Query A record from DNS server for: maartenvisser.be
[A]: 136.144.141.147
Testing CIDR: source=136.144.141.147;  136.144.141.147/128
a hit, Qualifier: +

============================================================================
DKIM: fail
============================================================================

DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Content-Type:MIME-Version:To:From:Subject:Date:
	Sender:Reply-To:Message-ID:Cc:Content-Transfer-Encoding:Content-ID:
	Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
	:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:
	List-Subscribe:List-Post:List-Owner:List-Archive;
	bh=As5BwEiDmRAMNTc3h/9WUQEOyB2Qj/TgZ5Fksy1ReXs=; b=j8UFsE2YdsIoCz0L/+r77ohuv+
	dY+7eFrHQLKs0IaX8DTAocX03GZErteaAL5vHXQDIzVFuwHh5iDyzdv1kw7nuz5TXyDS3dtIEHcki
	PSDvTO68X+4rEUpRBSfisKpRw6Ga+5a9FojYVau1WYe3GCmw9uYXygylIqyJ9ZymlhBmZ9HxTVSwh
	PKdEBZqrzcvmyYUDvc/su4019Xr6kuLQEgTetfqZts0FTGG3C+gE3VSBDVJQAbe0laTBKEoL/FU2n
	8edxYI7Qktiag+8Vlwp9KypDRGRpzyCXQLdJyNVIhWCRs1lbdJirrw1BVlSYT1IshoK0uv5WPWlAg
	REf+4Wuw==;
Signed-by: hello@maartenvisser.be
Expected-Body-Hash: As5BwEiDmRAMNTc3h/9WUQEOyB2Qj/TgZ5Fksy1ReXs=
Public-Key: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu6RKJ3dPHuQDrJURS8Qg3j9pLSOUp1T5ohNL/mEQvgANus0LXW92HGn4ojAsg/CeM3iabphqq+vHJe5lV0TvoncisVQl1rO/jwo5yRF9Yjf8OrOUCD+ErDFrIgU28QGeSaTCwGybQqqC1KrjJS05e5GwVR4hORwKEKgvqcnT98tAYvd6Fv1CLtbuZ2XcoU4SlAXfKo/tgXlr4Q4VkoslXiAtU3eJK/dDj57bcd7+8q4nH+O3aV4Kptd/XIiUDj3MlJNc+9L2XVyPiWdzCqlpumiyXGGuyLOO3CogQBgbpKLyYsOEy4yqYotAtXt9baV5xI6YUPA9lePNxLLLbpAW9wIDAQAB;

DKIM-Result: fail (bad signature)

============================================================================
DMARC: none
============================================================================

_dmarc.maartenvisser.be: Non-Record
Received-SPF: pass (appmaildev.com: domain of hello@maartenvisser.be designates 136.144.141.147 as permitted sender) client-ip=136.144.141.147
Authentication-Results: appmaildev.com;
    dkim=fail header.d=maartenvisser.be;
    spf=pass (appmaildev.com: domain of hello@maartenvisser.be designates 136.144.141.147 as permitted sender) client-ip=136.144.141.147;
    dmarc=none header.from=maartenvisser.be;

============================================================================
DomainKey: none
============================================================================

DomainKey-Result: none (no signature)
If DKIM result is passed, you can ignore DomainKey result: none

============================================================================
PTR: ExistsRecord
============================================================================

Sender-IP: 136.144.141.147
Query 147.141.144.136.in-addr.arpa
Host: server1.domain.be

============================================================================
RBL: NotListed
============================================================================

bl.spamcop.net:Not Listed (OK) - http://bl.spamcop.net 
cbl.abuseat.org:Not Listed (OK) - http://cbl.abuseat.org 
b.barracudacentral.org:Not Listed (OK) - http://www.barracudacentral.org/rbl/removal-request 
dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
http.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
dul.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
misc.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
smtp.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
socks.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
spam.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
web.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
zombie.dnsbl.sorbs.net:Not Listed (OK) - http://www.sorbs.net 
pbl.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/pbl/ 
sbl.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/sbl/ 
xbl.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/xbl/ 
zen.spamhaus.org:Not Listed (OK) - http://www.spamhaus.org/zen/ 
ubl.unsubscore.com:Not Listed (OK) - http://www.lashback.com/blacklist/ 
rbl.spamlab.com:Not Listed (OK) - http://tools.appriver.com/index.aspx?tool=rbl 
dyna.spamrats.com:Not Listed (OK) - http://www.spamrats.com 
noptr.spamrats.com:Not Listed (OK) - http://www.spamrats.com 
spam.spamrats.com:Not Listed (OK) - http://www.spamrats.com 
cbl.anti-spam.org.cn:Not Listed (OK) - http://www.anti-spam.org.cn/?Locale=en_US 
cdl.anti-spam.org.cn:Not Listed (OK) - http://www.anti-spam.org.cn/?Locale=en_US 
dnsbl.inps.de:Not Listed (OK) - http://dnsbl.inps.de/index.cgi?lang=en 
drone.abuse.ch:Not Listed (OK) - http://dnsbl.abuse.ch 
httpbl.abuse.ch:Not Listed (OK) - http://dnsbl.abuse.ch 
korea.services.net:Not Listed (OK) - http://korea.services.net 
short.rbl.jp:Not Listed (OK) - http://www.rbl.jp 
virus.rbl.jp:Not Listed (OK) - http://www.rbl.jp 
spamrbl.imp.ch:Not Listed (OK) - http://antispam.imp.ch 
wormrbl.imp.ch:Not Listed (OK) - http://antispam.imp.ch 
virbl.bit.nl:Not Listed (OK) - http://virbl.bit.nl	 
rbl.suresupport.com:Not Listed (OK) - http://suresupport.com/postmaster 
dsn.rfc-ignorant.org:Not Listed (OK) - http://www.rfc-ignorant.org/policy-dsn.php 
spamguard.leadmon.net:Not Listed (OK) - http://www.leadmon.net/SpamGuard/ 
dnsbl.tornevall.org:Not Listed (OK) - http://opm.tornevall.org 
netblock.pedantic.org:Not Listed (OK) - http://pedantic.org 
multi.surbl.org:Not Listed (OK) - http://www.surbl.org 
ix.dnsbl.manitu.net:Not Listed (OK) - http://www.dnsbl.manitu.net 
tor.dan.me.uk:Not Listed (OK) - http://www.dan.me.uk/dnsbl 
rbl.efnetrbl.org:Not Listed (OK) - http://rbl.efnetrbl.org 
dnsbl.dronebl.org:Not Listed (OK) - http://www.dronebl.org 
access.redhawk.org:Not Listed (OK) - http://www.redhawk.org/index.php?option=com_wrapper&Itemid=33 
db.wpbl.info:Not Listed (OK) - http://www.wpbl.info 
rbl.interserver.net:Not Listed (OK) - http://rbl.interserver.net 
query.senderbase.org:Not Listed (OK) - http://www.senderbase.org/about 
bogons.cymru.com:Not Listed (OK) - http://www.team-cymru.org/Services/Bogons/ 
csi.cloudmark.com:Not Listed (OK) - http://www.cloudmark.com/en/products/cloudmark-sender-intelligence/index 


============================================================================
Original message source
============================================================================
x-sender: hello@maartenvisser.be
x-receiver: test-a89a1796@appmaildev.com
Received: from server1.domain.be ([136.144.141.147]) by appmaildev.com with Microsoft SMTPSVC(8.5.9600.16384);
	 Tue, 5 Dec 2017 11:28:21 +0000
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
	d=maartenvisser.be; s=x; h=Content-Type:MIME-Version:To:From:Subject:Date:
	Sender:Reply-To:Message-ID:Cc:Content-Transfer-Encoding:Content-ID:
	Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
	:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:
	List-Subscribe:List-Post:List-Owner:List-Archive;
	bh=As5BwEiDmRAMNTc3h/9WUQEOyB2Qj/TgZ5Fksy1ReXs=; b=j8UFsE2YdsIoCz0L/+r77ohuv+
	dY+7eFrHQLKs0IaX8DTAocX03GZErteaAL5vHXQDIzVFuwHh5iDyzdv1kw7nuz5TXyDS3dtIEHcki
	PSDvTO68X+4rEUpRBSfisKpRw6Ga+5a9FojYVau1WYe3GCmw9uYXygylIqyJ9ZymlhBmZ9HxTVSwh
	PKdEBZqrzcvmyYUDvc/su4019Xr6kuLQEgTetfqZts0FTGG3C+gE3VSBDVJQAbe0laTBKEoL/FU2n
	8edxYI7Qktiag+8Vlwp9KypDRGRpzyCXQLdJyNVIhWCRs1lbdJirrw1BVlSYT1IshoK0uv5WPWlAg
	REf+4Wuw==;
Received: from [109.133.8.213] (helo=[172.16.34.70])
	by server1.domain.be with esmtpa (Exim 4.89_1)
	(envelope-from <hello@maartenvisser.be>)
	id 1eMBOd-0004yK-KM
	for test-a89a1796@appmaildev.com; Tue, 05 Dec 2017 12:28:20 +0100
Date: Tue, 05 Dec 2017 12:28:15 +0100
Subject: Second
Importance: normal
From: hello <hello@maartenvisser.be>
To: test-a89a1796@appmaildev.com
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="--_com.*******.android.email_655987137619700"
X-Authenticated-Id: hello@maartenvisser.be
Return-Path: hello@maartenvisser.be
Message-ID: <VMSA01dvXJ9natci85P00000167@appmaildev.com>
X-OriginalArrivalTime: 05 Dec 2017 11:28:21.0458 (UTC) FILETIME=[27E69B20:01D36DBC]

----_com.*******.android.email_655987137619700
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: base64

ClNlY29uZAoKVmVyem9uZGVuIHZhbmFmIG1pam4gU2Ftc3VuZyBHYWxheHktc21hcnRwaG9uZS4=

----_com.*******.android.email_655987137619700
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: base64

PGh0bWw+PGhlYWQ+PG1ldGEgaHR0cC1lcXVpdj0iQ29udGVudC1UeXBlIiBjb250ZW50PSJ0ZXh0
L2h0bWw7IGNoYXJzZXQ9VVRGLTgiPjwvaGVhZD48Ym9keT48ZGl2Pjxicj48L2Rpdj48ZGl2PlNl
Y29uZDwvZGl2PjxkaXY+PGJyPjwvZGl2PjxkaXY+PGJyPjwvZGl2PjxkaXYgaWQ9ImNvbXBvc2Vy
X3NpZ25hdHVyZSI+PGRpdiBzdHlsZT0iZm9udC1zaXplOjg1JTtjb2xvcjojNTc1NzU3IiBkaXI9
ImF1dG8iPlZlcnpvbmRlbiB2YW5hZiBtaWpuIFNhbXN1bmcgR2FsYXh5LXNtYXJ0cGhvbmUuPC9k
aXY+PC9kaXY+PC9ib2R5PjwvaHRtbD4=

----_com.*******.android.email_655987137619700--

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wavoe

Verified User
Joined
Nov 21, 2007
Messages
35
Location
Belgium
I'm still facing the problem and after some new searches today I found forums where they say that it could be the Message-ID.
One thing I'm trying to understand now is indeed why in the email which is DKIM valid I can see: Message-ID: <442510f6bf9948d5e82d0e3dc45cb731@maartenvisser.be>
And in an email with an invalid DKIM: Message-ID: VMSA018QvhnyTxAGCoR00000158@[B]appmaildev.com[/B]>

Additionally:
I'm testing this also on outlook.com where I get the same DKIM results, and if you check topic https://forum.directadmin.com/showthread.php?t=55651 it also to outlook.com
If you check the email headers in that topic you also see a different kind of Message-ID. For the valid signed emails you have a Message-ID: <[id]@[domain/host of sender]> for the invalid you have Message-ID: <[id]@[domain/host of receiver]>

So is the Message-ID not sent in some cases or how to clarify this behavior?
 
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