XCON: Connectors Stop Responding with Event 9301 After WinSock Proxy Client Is Installed (254909)
The information in this article applies to:
- Microsoft Exchange Server 4.0
- Microsoft Exchange Server 5.0
- Microsoft Exchange Server 5.5
This article was previously published under Q254909 SYMPTOMS
If you install WinSock Proxy Client on an Exchange Server computer to send an Internet Mail Connector (Exchange Server version 4.0) or Internet Mail Service (Exchange Server version 5.0 and later) message out through a proxy server, and an X.400 Connector is also installed on the Exchange Server computer, the connector stops responding. The remote server generates events 9301 and 9202.
CAUSE
This problem can occur because WinSock Proxy Client redirects the packets to a proxy server. The proxy server then "proxies" the packet, which causes the proxy server to send the packet to the remote X.400 server, because the source IP address is the address of the proxy server. The remote message transfer agent (MTA) rejects the connection request and generates event 9301, followed by event 9202.
RESOLUTION
To resolve this problem, modify the Mspclnt.ini file on the Exchange Server computer by adding the following
entry:
This disables WinSock Proxy Client when the MTA makes any network connections. NOTE: This problem only affects Site Connectors, X.400 Connectors, and Dynamic RAS Connectors. Other connectors, such as the Internet Mail Connector (Exchange Server 4.0) or Internet Mail Service (Exchange Server 5.0 and later), are not affected.
| Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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| Keywords: | kbFAQ kbprb KB254909 |
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