DKIM fail when reply a email

Hi, I have a problem not as I solve.

When I send a new email everything is perfect. = PASS DKIM, SPF = PASS ...

But there is a problem when I reply to an email then the DKIM does not match and the mail is returned as SPAM, I'm desperate not know what else I can do.

Please help, thanks!

 

Sure:

That´s what happen when i reply a email.

Code:

Received: by mail-tester.com (Postfix, from userid 500)  id 6EDC1A01CB;

  Thu,  7 Apr 2016 19:41:51 +0200 (CEST)

Authentication-Results: mail-tester.com; dkim=fail  reason="verification

failed; unprotected key"  header.d=example.com header.i=@ example.com

header.b=KjTsP8UZ;  dkim-adsp=none (unprotected policy); dkim-atps=neutral

X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail-tester.com

X-Spam-Level: ****

X-Spam-Status: No/4.6/5.0

X-Spam-Test-Scores: DKIM_SIGNED=0.1,HTML_MESSAGE=0.001,

  RAZOR2_CF_RANGE_51_100=0.365,RAZOR2_CF_RANGE_E8_51_100=2.43,

  RAZOR2_CHECK=1.729,SPF_PASS=-0.001,T_DKIM_INVALID=0.01,T_REMOTE_IMAGE=0.01,

  T_RP_MATCHES_RCVD=-0.01

X-Spam-Last-External-IP: MYIP

X-Spam-Last-External-HELO: server. example.com

X-Spam-Last-External-rDNS: server. example.com

X-Spam-Date-of-Scan: Thu, 07 Apr 2016 19:41:51 +0200

X-Spam-Report: * -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches

handover relay *  domain  * -0.0 SPF_PASS SPF: sender matches SPF record

  *  0.0 HTML_MESSAGE BODY: HTML included in message  *  2.4

RAZOR2_CF_RANGE_E8_51_100 Razor2 gives engine 8 confidence level  *

above 50%  *  [cf: 100]  *  0.1 DKIM_SIGNED Message has a DKIM or DK

signature, not necessarily  *  valid  *  1.7 RAZOR2_CHECK Listed in

Razor2 (Vipul's Razor: home) *  0.4 RAZOR2_CF_RANGE_51_100 Razor2 gives

confidence level above 50%  *  [cf: 100]  *  0.0 T_DKIM_INVALID

DKIM-Signature header exists but is not valid  *  0.0 T_REMOTE_IMAGE Message

contains an external image

Received-SPF: Pass (sender SPF authorized) identity=mailfrom;

client-ip=MYIP; helo=server. example.com;

envelope-from=auser@ example.com; receiver=web-n3yhhx@mail-tester.com

Authentication-Results: mail-tester.com; dmarc=none header.from= example.com

Received: from server. example.com (server. example.com [MYIP])

  by mail-tester.com (Postfix) with ESMTPS id 8A06A9F681

  for <web-n3yhHX@mail-tester.com>; Thu,  7 Apr 2016 19:41:49 +0200 (CEST)

DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;

d= example.com ; s=default;

h=Content-Type:To:From:Subject:Message-ID:Date:References:

  In-Reply-To:MIME-Version; bh=uK7ZWiwoBmmq2zLt7qnD6JJYUhwthdb/W+NABlIDj7Q=;

b=

  KjTsP8UZfchlMojjxm+awC+SkeoZHy3/mS/D2WViZGgYBmCRMMVXjDrL46DLYjKVf/Qs/GQL35x

  mw

  h8eeslBZXUq1cUP51qQVcerBFI7+K6lutecEPG0f2RMYeOzGtuDucUtxXj/K+QeuKebfUeU2YKc

  Gm

  fR+Bu5smivIX459n8hE9PpAr6SxmFDQ5wyGIFmRoEf50OOjgv4QKhg1duZ9Duj6J+O04lTw9tNo

  5M

  jy8GxQaBExQjX3AZGHpS5MhsK77ZPIQWpz8KGJIdj01OpT6BOwEt1QemAoxjqubw1a2gxYzFQDl

  Ce  oW39i46hfaOEko+/lG1Md32ONFYiTEbyhw==;

Received: from mail-qg0-f48.google.com ([209.85.192.48]:33986)

  by server. example.com

  with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128)  (Exim 4.86_1)  (envelope-from <user@ example.com>)

  id 1aoDxq-0004Qk-68  for web-n3yhHX@mail-tester.com;

  Thu, 07 Apr 2016 19:43:30 +0200

Received: by mail-qg0-f48.google.com with SMTP id c6so69589734qga.1

  for <web-n3yhHX@mail-tester.com>; Thu, 07 Apr 2016 10:43:30 -0700 (PDT)

X-Gm-Message-State:

AD7BkJIRUG2CbvvpeW2mxeNEb2qiZ3WnMsKuP2YZ0S2534OARDwZFlm3o1BxL56PWA9hhrN9Ram

  hUEmqiohMAA==

MIME-Version: 1.0

X-Received: by 10.140.181.137 with SMTP id

c131mr5879268qha.94.1460051009204; Thu, 07 Apr 2016 10:43:29 -0700 (PDT)

Received: by 10.140.33.246 with HTTP; Thu, 7 Apr 2016 10:43:29 -0700 (PDT)

In-Reply-To:

<CAKNXqdu86DLS0_hf3fYproxcOM-irNwxqDzFH260-9A8bwocnw@mail.gmail.com>

References:

  <CAKNXqdtXPp_LCy1uU9Ud+sLomFEbNs=JqmNhv3T9GziawnuEMw@mail.gmail.com>

  <CAKNXqdu86DLS0_hf3fYproxcOM-irNwxqDzFH260-9A8bwocnw@mail.gmail.com>

Date: Thu, 7 Apr 2016 19:43:29 +0200

X-Gmail-Original-Message-ID:

<CAKNXqdvpJ5uX0BO-ifZJTxONUbpXPCr3VBbSx6916H8bv6uHdw@mail.gmail.com>

HELLO?

 

I´m replying this email through a client, but both methods have the same results and DKIM record is configured on Cpanel

 

Hi, thanks my Support Request ID is: 7517691

I cant grant the ticket... :S If you have problems to enter i can give you credentials.