What is the maximum message batch size?

Overview

The maximum batch size possible is limited by the amount of available memory and the memory management system of the .Net framework.

Assuming sufficient memory is available, the maximum number of destinations in a message batch is 16,777,216. Beyond this limit, the application will produce an error.

The application has been compiled to take advantage of large memory address spaces where available under 64Bit versions of Windows and under 32Bit Windows editions with the /3GB boot.ini flag set. For more information on enabling large memory modes under Windows please consult the Microsoft support website.

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