Issue Mails not received from AOL accounts

[Julkvesan]

Hi all,

We can not receive emails from AOL accounts (sending is not a problem).

I am a little desperate because I don't know where to look or what to do to solve this problem.

We have deactivate spamassasin, deactivated check incoming email, add to white list aol ips, etc.

Usually aol clients get this answer:

--

This is the mail system at host omr-m017e.mx.aol.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<xxx@xxx.es>: Host or domain name not found. Name service error for
name=xxx.es type=MX: Host not found, try again


Reporting-MTA: dns; omr-m017e.mx.aol.com
X-Outbound-Mail-Relay-Queue-ID: 1715D3800085
X-Outbound-Mail-Relay-Sender: rfc822; xxx@aol.com
Arrival-Date: Fri, 2 Mar 2018 10:09:57 -0500 (EST)

Final-Recipient: rfc822; xxx@xxx.es
Original-Recipient: rfc822;xxx@xxx.es
Action: failed
Status: 4.4.3
Diagnostic-Code: X-Outbound-Mail-Relay; Host or domain name not found. Name
service error for name=xxx.es type=MX: Host not found, try again


Return-Path: <xxx@aol.com>
Received: from mtaout-mce02.mx.aol.com (mtaout-mce02.mx.aol.com [172.29.27.206])
by omr-m017e.mx.aol.com (Outbound Mail Relay) with ESMTP id 1715D3800085
for <xxx@xxx.es>; Fri, 2 Mar 2018 10:09:57 -0500 (EST)
Received: from [192.168.1.113] (unknown [92.189.235.239])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by mtaout-mce02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPSA id 9FE57380030B9
for <xxx@xxx.es>; Fri, 2 Mar 2018 10:09:56 -0500 (EST)
From: XXX <xxx@aol.com>
Content-Type: text/plain;
charset=us-ascii
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (1.0)
Date: Fri, 2 Mar 2018 16:09:55 +0100
Subject: xxx xxx xxx xxx
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_Part_74164_896277825.1520082404102"
X-MB-Message-Source: WebUI
X-MB-Message-Type: User
X-Mailer: JAS STD
X-Originating-IP: [92.189.235.239]
x-aol-global-disposition: G
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com;
s=20150623; t=1520082406;
bh=64z0lR+vg13M98OtlsEka2nOCn/9hMYTOIFvlz3xdS8=;
h=From:To:Subject:Message-Idate:MIME-Version:Content-Type;
b=Hnj4DLRyvZGZzhIEqpBJQ/GuE97VUADzRjh9+CWMLXEENNvrXV7uW8k+14Of2t9Yz
TVGSzpvaO/1wT9rqQcn50LIfSZMvTE8r+3Vh9R+1xJZdBtsdO375ckX7lpSiqWM5Bk
Kq5OkTsSIbHpbQ8qUWoIkevFWYLYQS8R5yGu8gTI=
x-aol-sid: 3039ac1a32b05a9a9de66534

--

Thanks and regards.

 

[Bitpalast]

Does your domain have an MX record? Sometimes this is omitted, and it usually works because SMTP servers will then use the wildcard A-record to deliver mail. But in some cases SMTP servers do not, and as your error message indicates in your case the *.es domain is not found - at least not as an MX record.

 

[Julkvesan]

Hi Peter,

thanks for your response. Yes domain has MX record Network Tools: DNS,IP,Email

We can receive emails with no problem, only receiving from AOL has problems.

We are investigating about reverse DNS, maybe that's the problem, I read something that made me think of this thread Resolved - Hostname Confusion. Subdomain? Reverse DNS?

 

[Julkvesan]

I don't understand anything...

After PTR configuration we have received one mail from an aol account into info@juvesa.es

Second try sendind to info@juvesa.es from aol account, same error:

--
This is the mail system at host omr-m008e.mx.aol.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<info@juvesa.es>: Host or domain name not found. Name service error for
name=juvesa.es type=MX: Host not found, try again
--

(((

 

[MarkM]

Intermittent results would indicate a DNS related issue; possibly with the sender's DNS servers unable to resolve the domain. If you just added a PTR record, it could still be propagating.