Question

IP Block Listed

Asked by: ynaina

I have an ADSL internet connection. It gives Dynamic IP. Now i am facing two problems.

i) The moment my dynamic IP changed, the mail sending from MDaemon bouncing back with error message saying that your IP is blocklisted in spamhaus.org. Then i go to spamhaus.org, and remove the IP. But it takes 2-3 hours to remove completely. It works fine till the time ISP changes my dynamic IP. What is the permanent solution for this issue?

ii) When we send an email, it bounces back immediately with the following error. When we resend it, it reaches the receipient. This problem occurs once per 100 mails.

-- Session Transcript ---
 Mon 2008-11-24 11:53:45: Parsing message <xxxxxxxxxxxxxxxxxxxxxxxx\pd50000433214.msg>
 Mon 2008-11-24 11:53:45: *  From: senduser@domainname.com  Mon 2008-11-24 11:53:45: *  To: receiveuser@domainname.com  Mon 2008-11-24 11:53:45: *  Subject: Subject  Mon 2008-11-24 11:53:45: *  Message-ID:
<006301c94e09$9e96e090$9001a8c0@continental.com>
 Mon 2008-11-24 11:53:45: *  Route slip host: wahi2005.easycgi.com  Mon 2008-11-24 11:53:45: *  Route slip port: 25  Mon 2008-11-24 11:53:45: Attempting SMTP connection to [wahi2005.easycgi.com]  Mon 2008-11-24 11:53:45: Resolving MX records for [wahi2005.easycgi.com] (DNS Server: 213.42.20.20)...
 Mon 2008-11-24 11:53:46: *  P=000 S=000 D=cust-win65.easycgi.com TTL=(60) MX=[mx.easycgi.com] {66.96.140.52}  Mon 2008-11-24 11:53:46: *  P=000 S=001 D=cust-win65.easycgi.com TTL=(60) MX=[mx.easycgi.com] {66.96.140.50} multi-homed  Mon 2008-11-24 11:53:46: *  P=000 S=002 D=cust-win65.easycgi.com TTL=(60) MX=[mx.easycgi.com] {66.96.140.51} multi-homed  Mon 2008-11-24 11:53:46: Attempting SMTP connection to [66.96.140.52:25]  Mon 2008-11-24 11:53:46: Waiting for socket connection...
 Mon 2008-11-24 11:53:46: *  Connection established (192.168.1.10:5476 ->
66.96.140.52:25)
 Mon 2008-11-24 11:53:46: Waiting for protocol to start...
 Mon 2008-11-24 11:53:47: <-- 421 bosimpinc01.eigbox.net NO UCE too many connections  Mon 2008-11-24 11:53:47: --> QUIT  Mon 2008-11-24 11:53:47: Attempting SMTP connection to [66.96.140.50:25]  Mon 2008-11-24 11:53:47: Waiting for socket connection...
 Mon 2008-11-24 11:53:47: *  Connection established (192.168.1.10:5480 ->
66.96.140.50:25)
 Mon 2008-11-24 11:53:47: Waiting for protocol to start...
 Mon 2008-11-24 11:53:47: <-- 421 bosimpinc02.eigbox.net NO UCE too many connections  Mon 2008-11-24 11:53:47: --> QUIT  Mon 2008-11-24 11:53:47: Attempting SMTP connection to [66.96.140.51:25]  Mon 2008-11-24 11:53:47: Waiting for socket connection...
 Mon 2008-11-24 11:53:47: *  Connection established (192.168.1.10:5483 ->
66.96.140.51:25)
 Mon 2008-11-24 11:53:47: Waiting for protocol to start...
 Mon 2008-11-24 11:53:48: <-- 421 bosimpinc01.eigbox.net NO UCE too many connections  Mon 2008-11-24 11:53:48: --> QUIT  Mon 2008-11-24 11:53:48: Attempting to send message to gateway  Mon 2008-11-24 11:53:48: Attempting SMTP connection to [wahi2005.easycgi.com:25]  Mon 2008-11-24 11:53:48: *  Cache hit on wahi2005.easycgi.com; IP =
66.96.143.165
 Mon 2008-11-24 11:53:48: Waiting for socket connection...
 Mon 2008-11-24 11:53:48: *  Connection established (192.168.1.10:5486 ->
66.96.143.165:25)
 Mon 2008-11-24 11:53:48: Waiting for protocol to start...
 Mon 2008-11-24 11:53:50: <-- 220 ESMTP Mon, 24 Nov 2008 02:48:54 -0500: UCE strictly prohibited  Mon 2008-11-24 11:53:50: --> EHLO domainname.com  Mon 2008-11-24 11:53:51: <-- 250-bosauthsmtp11.eigbox.net Hello domainname.com [83.110.101.202]  Mon 2008-11-24 11:53:51: <-- 250-SIZE 34603008  Mon 2008-11-24 11:53:51: <-- 250-AUTH PLAIN LOGIN  Mon 2008-11-24 11:53:51: <-- 250-STARTTLS  Mon 2008-11-24 11:53:51: <-- 250 HELP  Mon 2008-11-24 11:53:51: --> MAIL From:<senduser@domainname.com>
SIZE=24728
 Mon 2008-11-24 11:53:52: <-- 550 bosauthsmtp11: Host 83.110.101.202: No unauthenticated relaying permitted
--- End Transcript ---
: Message contains [1] file attachments

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Asked On
2008-11-30 at 00:09:15ID23944670
Topic

Mdaemon

Participating Experts
1
Points
125
Comments
3

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Answers

 

by: moorhouselondonPosted on 2008-11-30 at 01:04:19ID: 23062472

>What is the permanent solution for this issue?

Get a fixed IP address.  You could subscribe to a Dynamic DNS service to get a pseudo-static IP, but this is not a satisfactory solution.

 

by: moorhouselondonPosted on 2008-11-30 at 01:13:08ID: 23062482

>When we resend it, it reaches the receipient.

This scenario sometimes signifies the recipient has Greylisting enabled, but the return handshake message should generally tell you this.  It is possible that the recipient's mail server is setup in a way that emulates this, but doesn't inform the sender properly.  

Another possibility - which would be ascertained by inspecting the logs, is that you are being routed via a different MX record, and that one of them is configured wrongly.

 

by: ynainaPosted on 2009-12-29 at 19:15:50ID: 31521263

I have solved my issue by changing the MX record details.

20120131-EE-VQP-002

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