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451 4.4.0 Primary Target IP Address responded with:"421 4.2.1 Unable to Connect"

Posted on 2008-05-16
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I am working on an Exchange site (Mixed): 2 servers running 2003 and 2 servers running 2007.  The 2003 side is working fine, but the 2007 side cannot send email to internet recipients.  
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Question by:tandrick
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Expert Comment

by:Sam Panwar
ID: 21588062
Hi,

Please telnet port 25 on the both server and check if it blocked or not.

thanks,
SAM
***web site link removed*** TechSoEasy -- EE's Microsoft Zone Advisor
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LVL 18

Expert Comment

by:Sam Panwar
ID: 21588082
Hi,

I also suggest you inspect the protocol log, and also make sure as per my previous reply the  server can connect to the intended target server.

 

You can enable the protocol log for the 'send connector' responsible for delivering messages to those domains through the Exchange 2007 Management Console. It's probably the one with address space set to "*". Once you did that, you should see a protocol logfile starting to grow in %EXCHANGE DIRECTORY%\TransportRoles\Logging\Protocol\Smtp\SmtpSend.

 
That file should give you a clue as to why the server failed to connect. Please also send me those lines so I can assist you better.

Regards,
SAM
***web site link removed*** TechSoEasy -- EE's Microsoft Zone Advisor
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Author Comment

by:tandrick
ID: 21590049
SAM,
Thank you for your attention on this matter.     I can telnet to port 25 on both servers.  Here are the entries on the smtpsend  log file:

2008-05-17T16:07:24.782Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,0,,205.188.252.17:25,*,,attempting to connect
2008-05-17T16:07:45.891Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,1,,205.188.252.17:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:07:45.891Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,0,,64.12.138.57:25,*,,attempting to connect
2008-05-17T16:08:07.000Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,1,,64.12.138.57:25,*,,"Failed to connect. Error Code: 10060, Error Message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
2008-05-17T16:08:07.000Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,0,,205.188.159.216:25,*,,attempting to connect
2008-05-17T16:08:28.000Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,1,,205.188.159.216:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:08:28.000Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,0,,64.12.138.88:25,*,,attempting to connect
2008-05-17T16:08:49.000Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,1,,64.12.138.88:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:08:49.000Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,0,,64.12.138.120:25,*,,attempting to connect
2008-05-17T16:09:09.999Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,1,,64.12.138.120:25,*,,"Failed to connect. Error Code: 10060, Error Message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
2008-05-17T16:09:09.999Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,0,,64.12.137.89:25,*,,attempting to connect
2008-05-17T16:09:31.015Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,1,,64.12.137.89:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:09:31.015Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,0,,205.188.249.91:25,*,,attempting to connect
2008-05-17T16:09:51.999Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770A,1,,205.188.249.91:25,*,,"Failed to connect. Error Code: 10060, Error Message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
2008-05-17T16:11:16.357Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770F,0,,75.180.132.243:25,*,,attempting to connect
2008-05-17T16:11:37.326Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770F,1,,75.180.132.243:25,*,,"Failed to connect. Error Code: 10060, Error Message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
2008-05-17T16:11:37.326Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770F,0,,75.180.132.244:25,*,,attempting to connect
2008-05-17T16:11:58.325Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE3770F,1,,75.180.132.244:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:14:59.448Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,66.196.97.250:25,*,,attempting to connect
2008-05-17T16:15:20.448Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,66.196.97.250:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:15:20.448Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,216.39.53.3:25,*,,attempting to connect
2008-05-17T16:15:41.448Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,216.39.53.3:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:15:41.448Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,216.39.53.2:25,*,,attempting to connect
2008-05-17T16:16:02.463Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,216.39.53.2:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:16:02.463Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,66.196.82.7:25,*,,attempting to connect
2008-05-17T16:16:23.463Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,66.196.82.7:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:16:23.463Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,209.191.88.239:25,*,,attempting to connect
2008-05-17T16:16:44.447Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,209.191.88.239:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:16:44.447Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,206.190.53.191:25,*,,attempting to connect
2008-05-17T16:17:05.775Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,206.190.53.191:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:17:05.775Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,209.191.118.103:25,*,,attempting to connect
2008-05-17T16:17:26.884Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,209.191.118.103:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:17:26.884Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,216.39.53.1:25,*,,attempting to connect
2008-05-17T16:17:47.883Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,216.39.53.1:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:17:47.883Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,209.191.88.247:25,*,,attempting to connect
2008-05-17T16:18:08.883Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,209.191.88.247:25,*,,"Failed to connect. Error Code: 10060, Error Message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
2008-05-17T16:18:08.883Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,0,,68.142.202.247:25,*,,attempting to connect
2008-05-17T16:18:29.883Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37713,1,,68.142.202.247:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:19:52.007Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,0,,64.12.138.153:25,*,,attempting to connect
2008-05-17T16:20:12.913Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,1,,64.12.138.153:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:20:12.913Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,0,,205.188.252.17:25,*,,attempting to connect
2008-05-17T16:20:33.928Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,1,,205.188.252.17:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:20:33.928Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,0,,205.188.109.56:25,*,,attempting to connect
2008-05-17T16:20:54.912Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,1,,205.188.109.56:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:20:54.912Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,0,,64.12.138.88:25,*,,attempting to connect
2008-05-17T16:21:15.912Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,1,,64.12.138.88:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:21:15.912Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,0,,64.12.138.57:25,*,,attempting to connect
2008-05-17T16:21:36.927Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,1,,64.12.138.57:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:21:36.927Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,0,,205.188.159.216:25,*,,attempting to connect
2008-05-17T16:21:57.911Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,1,,205.188.159.216:25,*,,"Failed to connect. Error Code: 10051, Error Message: A socket operation was attempted to an unreachable network"
2008-05-17T16:21:57.911Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37717,0,,205.188.249.91:25,*,,attempting to connect
2008-05-17T16:21:58.318Z,Internet Mail SMTP Connector (934exfe1),08CA846A3EE37718,0,,75.180.132.243:25,*,,attempting to connect


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LVL 18

Accepted Solution

by:
Sam Panwar earned 1000 total points
ID: 21596336
Hi,

Sorry delay response...

It seems that the server is not connect to each other through the port so please check your firewall is not block port. Please also check to disable RRAS service or disable window default firewall.

thanks,
SAM
***web site link removed*** TechSoEasy -- EE's Microsoft Zone Advisor
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Author Closing Comment

by:tandrick
ID: 31458880
The firewall port was blocked.  Thanks a lot!!
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