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Receive Connectors must control the number of recipients 'chunked' on a single message.


Overview

Finding ID Version Rule ID IA Controls Severity
Exch-HB-209 Exch-HB-209 Exch-HB-209_rule Low
Description
Email system availability depends in part on best practices strategies for setting tuning configurations. This setting is used when two Exchange servers send or receive email. The chunking setting enables large message bodies to be relayed by the remote server to the Receive Connector in multiple, smaller chunks.
STIG Date
Microsoft Exchange 2010 Hub Transport Server Role 2012-05-31

Details

Check Text ( C-_chk )
Open the Exchange Management Shell and enter the following command.

Get-ReceiveConnector | Select Name, Identity, ChunkingEnabled

If the value of "ChunkingEnabled" is set to "True", this is not a finding.
Fix Text (F-_fix)
Open the Exchange Management Shell and enter the following command.

Set-ReceiveConnector -Identity <'Server\ReceiveConnector'> -ChunkingEnabled &true