A reliable transport service element (RTSE) error occurred while processing an association with . The association will be terminated and restarted if necessary. Current state . Service type . Service flavor . Control block index . [ ] (12)

Details
Product: Exchange
Event ID: 1133
Source: MSExchangeMTA
Version: 6.5.6940.0
Component: Microsoft Exchange Message Transfer Agent
Message: A reliable transport service element (RTSE) error occurred while processing an association with <object name>. The association will be terminated and restarted if necessary. Current state <name>. Service type <name>. Service flavor <name>. Control block index <index name>. [<value> <value> <value> <value>] (12)
   
Explanation

The Open Systems Interconnection (OSI) stack encountered an unexpected condition during normal message flow. The affected connection will be restarted. This event can occur when there are networking issues in the environment. You could also see related message transfer agent (MTA) events indicating network connectivity problems.

   
User Action

If message flow is not affected, ignore the condition. If message flow stops, restart the MTA service. Check the network interface card (NIC) on the server to ensure that it is functioning properly. Ensure that the latest NIC drivers are installed. If the condition persists, contact Microsoft Product Support Services.

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