Few mails are bouncing back with undelivered notification. below is the content of one email that bounced back. I checked reverse DNS entry. Your help is highly appreciated.
An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: cgpfe1.batelco.com.bh.
_____
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: uopmail.uopkt.com
devlab@prisma.com.bh
cgpfe1.batelco.com.bh #591 devlab@prisma.com.bh your host [168.187.83.138] is blacklisted by bl.spamcop.net. No mail will be accepted ##
Original message headers:
Received: from uopmail.uopkt.com ([192.168.0.204]) by uopmail.uopkt.com
([192.168.0.204]) with mapi; Wed, 25 Mar 2009 10:12:54 +0300
From: Ashok Kumar <marketing@uopkt.com>
To: Krishna Mohan <devlab@prisma.com.bh>
Date: Wed, 25 Mar 2009 10:12:51 +0300
Subject: The sun will never set on the petro-economies, just covered by
clouds
Thread-Topic: The sun will never set on the petro-economies, just covered by
clouds
Thread-Index: AcmtGRwZ2efdY0DST3qnJ8uDAU
Message-ID: <9264FA75B8147B4FA4B76B2A5
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: multipart/alternative;
boundary="_000_9264FA75B81
MIME-Version: 1.0
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Hi abbasiftt,
Well... Your issue is: "your host [168.187.83.138] is blacklisted by bl.spamcop.net. No mail will be accepted"
If you believe that your host IP should not be blacklisted, go to the spamcop.net site, enter your IP and request to be removed from their blacklist.
I would recommend checking your AV software as well as open relays on your Exchange server.
Let me know if you need more assistance.
Cheers
Below is the reply I from ISP. (seems It is already there).
By the way this problem is for only 2or 3 domains.
Dear Muhammed Asif,
Reference to below results, we notice PTR already exist for 168.187.83.139.
dig -x 168.187.83.139
; <<>> DiG 9.2.5 <<>> -x 168.187.83.139
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1188
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;139.83.187.168.in-addr.ar
;; ANSWER SECTION:
139.83.187.168.in-addr.arp
Ok, so I take it the PTR record points to your mail server and the name is correct as well?
You can check for open relay here:
http://www.checkor.com/
Below is the result from the site.
Please check and let me know if there is any issue.
220 mail.uopkt.com ESMTP Symantec Mail Security
HELO ortest.checkor.com
250 mail.uopkt.com
RSET
250 Ok
MAIL FROM: test@checkor.com
250 Ok
RCPT TO: test1@checkor.com
554 : Relay access denied
--------------------------
RSET
250 Ok
MAIL FROM:
501 Syntax: MAIL FROM:
RCPT TO: test1@checkor.com
503 Error: need MAIL command
--------------------------
RSET
250 Ok
MAIL FROM: spam@mail.uopkt.com
250 Ok
RCPT TO: test1@checkor.com
554 : Relay access denied
--------------------------
RSET
250 Ok
MAIL FROM: spam@mail.uopkt.com
250 Ok
RCPT TO: test1@checkor.com
554 : Relay access denied
--------------------------
RSET
250 Ok
MAIL FROM: spam@mail.uopkt.com
250 Ok
RCPT TO: test1@mail.uopkt.com
554 : Relay access denied
--------------------------
RSET
250 Ok
MAIL FROM: spam@mail.uopkt.com
250 Ok
RCPT TO: "test1@test.com"@mail.uopk
554 : Relay access denied
--------------------------
RSET
250 Ok
MAIL FROM: spam@mail.uopkt.com
250 Ok
RCPT TO: @mail.uopkt.com:spamtest@c
554 : Relay access denied
Thanks
Muhammed Asif
For the blacklist issue what I have done is I changed the IP of the gateway. after that mail went through.
But what could be solution for the second problem (mail bounced back with another error which I mentioned before). Now so many mails bounced back with same error (see error below)
Awaiting your reply.
Muhammed Asif
Delivery has failed to these recipients or distribution lists:
vendas@klemm.com.br
Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.
The following organization rejected your message: peninha.viavale.com.br.
_____
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: uopmail.uopkt.com
vendas@klemm.com.br
peninha.viavale.com.br #550 5.7.1 Client host rejected: cannot find your hostname, [168.187.83.138] ##
Original message headers:
Received: from uopmail.uopkt.com ([192.168.0.204]) by uopmail.uopkt.com
([192.168.0.204]) with mapi; Tue, 24 Mar 2009 08:21:22 +0300
From: Toby Calipay <po@uopkt.com>
To: "clarim@viavale.com.br" <clarim@viavale.com.br>, "vendas@klemm.com.br"
<vendas@klemm.com.br>
Date: Tue, 24 Mar 2009 08:21:21 +0300
Subject: Inquiry Soyabean Oil "Refined"
Thread-Topic: Inquiry Soyabean Oil "Refined"
Thread-Index: AcgcZxnhHYuJtTc9Slan+IKXuw
Message-ID: <9264FA75B8147B4FA4B76B2A52
References: <334D893A319FBC4D8BA0C241FD
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: multipart/alternative;
boundary="_000_9264FA75B81
MIME-Version: 1.0
How to find out which PC is generating junk mails. Because now the changed IP is also blocked.
And the they sent me an email saying that if your request to unblock the IP comes frequntly they will block completely.To solve it you have to find and fix the PC/server which is generating spam.
Your help is highly appreciated.
Muhamed Asif
Is your gateway responsible for sending the mail? I mean, is it a smarthost?
How many PC do you have in your organization? If not too many, I would suggest that you download and install MalwareBytes on each system and do a scan to see which PC is infected and is sending out the mail.
You can download it here:
http://www.malwarebytes.or
You can use the free trial version.
Good, your spam should stop now.
About the other error:
If you want your mail delivered properly the Official Host Name of the sending server should match the PTR (reverse DNS) of the sending IP Address, and there should be an "A" record that matches the OHN as well.
Example:
mail.yourdomain.com (Official Host Name) on 123.123.123.123
PTR for 123.123.123.123 should match mail.yourdomain.com (contact you ISP to do this for you)
There should be an A record in yourdomain.com pointing to 123.123.123.123
Problem will go away if you do the above.
I have configured it before on my last discussion with you. I think it is the same as you mentioend above. see below for the current settings.
mail.domain.com pointsto 123.123.123.123 (A record externallly)
mail.domain.com pointsto 192.168.0.222 (A record internallly)
mail.domain.com pointsto 123.123.123.123 (done by ISP) PTR
But let's wait for next working day and check. I think It will work.
Many Thanks for your prompt reply
Muhammed Asif
I tried sending that mail now I got error again (see error below). Can you please check what is the problem with this error. This error is something different than the other error. By looking at the error you would be able to give me a solution.
By the way I have two exchange servers in the network
first one working as HUB but mail,and cas installed on the same ( IP:192.168.0.203.)
second one has all the three roles installed,all the mailbox stored in this server (IP 192.168.0.204).
but first one is gateway to internet
Delivery has failed to these recipients or distribution lists:
campestre@campestre.com.br
An error occurred while trying to deliver this message to this recipient e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: servidor3.molservidores.co
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: exch.uopkt.com
campestre@campestre.com.br
servidor3.molservidores.co
Original message headers:
Received: from uopmail.uopkt.com ([192.168.0.204]) by exch.uopkt.com
([192.168.0.203]) with mapi; Sat, 28 Mar 2009 09:21:20 +0300
From: Muhammed Asif <mohdasif@uopkt.com>
To: "campestre@campestre.com.b
Disposition-Notification-T
Date: Sat, 28 Mar 2009 09:20:48 +0300
Subject: Test mail
Thread-Topic: Test mail
Thread-Index: AcmsVcvM2nvyepzYRz2ALrvZtg
Message-ID: <9264FA75B8147B4FA4B76B2A52
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: multipart/alternative;
boundary="_000_9264FA75B81
MIME-Version: 1.0
Thanks
Muhammed Asif
Can you please tell me what is the problem with the below error .
Thanks for all your support. All the other disappeared I think. This is the only error.
Delivery has failed to these recipients or distribution lists:
Juaidan-Al, Mohammed S.
An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: ESMTP.
_____
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: uopmail.uopkt.com
MohammedSJ@SABIC.com
ESMTP #554 Transaction Failed Spam Message not queued. ##
Original message headers:
Received: from uopmail.uopkt.com ([192.168.0.204]) by uopmail.uopkt.com
([192.168.0.204]) with mapi; Tue, 31 Mar 2009 10:44:52 +0300
From: Toby Calipay <po@uopkt.com>
To: "Juaidan-Al, Mohammed S." <MohammedSJ@SABIC.com>
Date: Tue, 31 Mar 2009 10:44:50 +0300
Subject: Styrene Monomer
Thread-Topic: Styrene Monomer
Thread-Index: Acmx0NPyBCGmtQA4RluLlXcG/v
Message-ID: <9264FA75B8147B4FA4B76B2A52
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: multipart/mixed;
boundary="_006_9264FA75B81
MIME-Version: 1.0
Thanks
Muhammed Asif
Hi, sorry for the late reply, I was out of office.
It still sounds like it's your ISP and the PTR record issue.
http://www.experts-exchang
http://www.experts-exchang
This issue is with your ISP.
Today I had the same issue , see below
From: MicrosoftExchange329e71ec8
Sent: Tuesday, May 05, 2009 9:33 AM
To: Ashok Kumar
Subject: Undeliverable: Saudi Maintenance Projects
Delivery has failed to these recipients or distribution lists:
hoad@uic.com
The recipient's e-mail address was not found in the recipient's e-mail system. Microsoft Exchange will not try to redeliver this message for you. Please check the e-mail address and try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: gmail.sps.net.sa.
_____
Sent by Microsoft Exchange Server 2007
Your help is highly appreciated.
I will award you points more than you expected as I am fed up of thsi isue.
Thakns
Muhammed Asif
Business Accounts
Answer for Membership
by: abbasifttPosted on 2009-03-25 at 00:41:33ID: 23976737
one more mail bounced back with another error. below is the error.
Delivery has failed to these recipients or distribution lists:
campestre@campestre.com.br
An error occurred while trying to deliver this message to the recipient's e-mail address. Microsoft Exchange will not try to redeliver this message for you. Please try resending this message, or provide the following diagnostic text to your system administrator.
The following organization rejected your message: servidor3.molservidores.co
_____
Sent by Microsoft Exchange Server 2007
Diagnostic information for administrators:
Generating server: uopmail.uopkt.com
campestre@campestre.com.br
servidor3.molservidores.co
Original message headers:
Received: from uopmail.uopkt.com ([192.168.0.204]) by uopmail.uopkt.com
([192.168.0.204]) with mapi; Wed, 25 Mar 2009 10:44:34 +0300
From: Muhammed Asif <mohdasif@uopkt.com>
To: "campestre@campestre.com.b
Disposition-Notification-T
Date: Wed, 25 Mar 2009 10:44:33 +0300
Subject: Test mail
Thread-Topic: Test mail
Thread-Index: AcmsVcvM2nvyepzYRz2ALrvZtg
Message-ID: <9264FA75B8147B4FA4B76B2A52
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
acceptlanguage: en-US
Content-Type: multipart/alternative;
boundary="_000_9264FA75B81
MIME-Version: 1.0
Please help
Muhammed Asif