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MSMQ from the plumber's mate MSMQ is part of your business' IT plumbing which makes you the plumber and I'm your mate.

If you are sending messages over HTTP then there is a chance you may be behind a proxy server which prevents you making a direct connection to the destination server.

This is no big deal - Internet-enabled products such as Internet Explorer and MSMQ always check for any proxy settings so they know how to get out onto the Web. Specifically they check:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\WinHttpSettings.

If you have MSMQ messages in an outgoing queue that remains in a Waiting to Connect state then you may want to check the proxy settings are correct.

Here for reference are a couple of Knowledgebase articles for different products that discuss resolving the same root cause (bad WinHttpSettings proxy value):

The Systems Management Server 2003 or SMS 2003 Service Pack 1 Advanced Client computer cannot connect to the Management Point
How the Windows Update client determines which proxy server to use to connect to the Windows Update Web site

Posted on Thursday, September 9, 2010 11:34 PM | Back to top

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