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Mailserver blacklisted?

Hi
We have a mail server where we are hosting over 100 mail domains with over 1000 accounts
Runnig Imail 8.22 and ISP Spamfilter on our Windows 2003 Server.

One client in africa has reported several times that it seems like some of the once they sent mail to will not receive the mail as our mail server is blacklisted

This is the message they get in return. No other has this problem.
Can anyone se out from this if its reacting to our mail server and what trigger the rejection.
I have tried to check if our mail server is blacklisted on the net and I can not find any.
Hopefully someone can give me some directions on what the problem is:

----------------------------------------------------------------------------------------------------------------
> Unexpected connection response from server:

> 421 mail.chembada.co.zw has refused your connection as your mail server

> has been temporarily blacklisted

>

>

>

> Original message follows.

>

> Received: from SMTP32-FWD by humana.org

> (SMTP32) id AFB3001A60000BE7C; Wed, 17 Mar 2010 16:54:24 +0100

> Received: from 172.18.0.10 [172.18.0.10] by e-advice.dk with ESMTP

> (SMTPD-8.22) id AB300744; Wed, 17 Mar 2010 16:54:24 +0100

> Received: from 216.104.192.7 by 172.18.0.10 (LogSat Software SMTP Server);

> Wed, 17 Mar 2010 16:52:13 +0100

> Received: from smtp.africaonline.co.zw (localhost [127.0.0.1])

> by localhost (Postfix) with SMTP id BABAB2C5E3D;

> Wed, 17 Mar 2010 16:30:34 +0200 (SAST)

> Received: from traverzetravel.co.zw (unknown [216.104.197.57])

> by smtp.africaonline.co.zw (Postfix) with ESMTP id 53B782C6072;

> Wed, 17 Mar 2010 16:29:18 +0200 (SAST)

> Received: from Accounts (unknown [192.168.0.70])

> by traverzetravel.co.zw (Postfix) with SMTP id 3A51D1A9AB3;

> Wed, 17 Mar 2010 17:27:23 +0200 (SAST)

> Message-ID: <F392E3FFCFB048248AFECCEBCAD62FB2@Accounts>

> Reply-To: "Memory" <memory@traverzetravel.co.zw>

> From: "Memory" <memory@traverzetravel.co.zw>

> To: "Humana People to people" <hqed@humana.org>

> Cc: "Cresencia" <cresencia@chembada.co.zw>

> Subject: INVOICE FOR DARSBO MARIA

> Date: Wed, 17 Mar 2010 15:32:44 +0200

> Organization: Traverze Travel

> MIME-Version: 1.0

> Content-Type: multipart/mixed;

> boundary="----=_NextPart_000_0006_01CAC5E7.17B58610"

> X-Priority: 3

> X-MSMail-Priority: Normal

> X-Mailer: Microsoft Outlook Express 6.00.2900.5512

> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579

> X-Antivirus: avast! (VPS 100317-0, 03/17/2010), Outbound message

> X-Antivirus-Status: Clean

> X-PMX-Version: 5.5.9.388399, Antispam-Engine: 2.7.2.376379, Antispam-Data:

> 2010.3.17.132124

> X-PerlMx-Spam: Gauge=IIIIIIII, Probability=8%, Report='

> HTML_50_70 0.1, FROM_NAME_ONE_WORD 0.05, SUPERLONG_LINE 0.05,

> BODY_SIZE_10000_PLUS 0, FORGED_MUA_OUTLOOK 0, INVALID_MSGID_NO_FQDN 0,

> LINK_TO_IMAGE 0, PDF_ATTACHED 0, PDF_ATTACHED_2 0, RDNS_GENERIC_POOLED 0,

> RDNS_SUSP 0, RDNS_SUSP_GENERIC 0, USER_AGENT_OE 0, __CT 0,

> __CTYPE_HAS_BOUNDARY 0, __CTYPE_MULTIPART 0, __CTYPE_MULTIPART_MIXED 0,

> __FRAUD_AIRLINE 0, __FRAUD_CONTACT_NUM 0, __FRAUD_SUBJ_AL
0
morten444
Asked:
morten444
  • 2
1 Solution
 
SteveCommented:
You may be blacklisted at a local level by some server but I just ran a check with http://www.MXTOOLBOX.COM
and found you listed on none of the major blacklist reporting sites.
http://www.mxtoolbox.com/SuperTool.aspx?action=mx%3atraverzetravel.co.zw
You may want to contact individual email admins at the domains claiming you are blacklisted as it must be local to them.
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morten444Author Commented:
Hi
Thanks
That was what I through at well, but as i am not very experienced i needed someone who understand this to give a more professional opinion to it.
Thanks alot
0
 
SteveCommented:
No problem at all, that's why we're here.
0

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