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Message routing latency if IPv6 is enabled in Exchange Server 2013

By default, IPv6 is enabled in Windows. If IPv6 addressing is configured to use link-local addressing, there is a time-based latency in delivering messages in Microsoft Exchange Server 2013. This occurs because the computer tries to resolve the IPv6 address record (AAAA record).
To resolve this issue, install the following update:
2961810 Cumulative Update 6 for Exchange Server 2013

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
For more information about APIPA IPv4 and IPv6 link-local addresses, go to the following Microsoft website:

Article ID: 2963590 - Last Review: 08/26/2014 16:39:00 - Revision: 2.0

Microsoft Exchange Server 2013 Service Pack 1, Microsoft Exchange Server 2013 Enterprise, Microsoft Exchange Server 2013 Standard

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