server is unable to send to ANY btinternet.com addresses but can send to all others

[baggs1981]

Hi All,

I also need some urgent help / ideas in tackling an issue a clients server is having with sending to ANY btinternet.com email address even though they can send to any other email accounts.

I am aware of clearing the files: retry , retry.lockfile , wait-remote_smtp, wait-remote_smtp.lockfile in /var/spool/exim/db but this does not help.

The emails sent to @btinternet.com are all instantly returned with the below:

-----Original Message-----
From: Mail Delivery System [mailto:Mailer-Daemon@server01.#######.net]

Sent: 07 February 2015 13:14
To: sales@#######.com
Subject: Mail delivery failed: returning message to sender

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

#######@btinternet.com
retry time not reached for any host after a long failure period

------ This is a copy of the message, including all the headers. ------

Return-path: <sales@#######.com>
Received: from 82-163-48-34.rdns.as8401.net ([82.163.48.34]
helo=#######)
by server01.#######.net with esmtpa (Exim 4.76)
(envelope-from <sales@#######.com>)
id 1YK5Co-00065Y-KS
for #######@btinternet.com; Sat, 07 Feb 2015 13:13:50 +0000
From: "sales" <sales@#######.com>
To: <#######@btinternet.com>
Subject: email
Date: Sat, 7 Feb 2015 13:19:02 -0000
Message-ID: <007001d042d8$a4162bf0$ec4283d0$@com>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0071_01D042D8.A4162BF0"
X-Mailer: Microsoft Office Outlook 12.0
Thread-Index: AdBC2KPazFHrQxfLTwa85C+OE/YlJQ==
Content-Language: en-gb

This is a multi-part message in MIME format.

------=_NextPart_000_0071_01D042D8.A4162BF0
Content-Type: text/plain;
charset="US-ASCII"
Content-Transfer-Encoding: 7bit

 

[SeLLeRoNe]

Are you sure you're not blocking outgoing connection to their mailserver?
Are you sure they're not blocking incoming connection from your server?

You should check that disabling your Firewall and trying using telnet to port 25 of their mailserver.

If disabling firewall fix the issue, you're blocking them, fix it.
If it still doenst work, they're probably blocking you for some reason.

Regards

 

[zEitEr]

Hello,

More information is needed, or we should see logs. The posted data does not give any idea on why they do not accept emails from your server.