Exchange 2013 CU6 KB2961810

The Exchange Team announces update CU6 for Exchange Server 2013 

When you install this update your system version will change to: 15.0.995.29

All informations about changes included in CU6 for Exchange 2013  can be found here: KB2961810

CU 6 increase public folder limit cout to 100,000 it’s 10x increase over the prior limit as defined before.

This Cumulative Update contains the following fixes:

• 2991934 Duplicate mailbox folders after migration to Exchange Server 2013
• 2988229 Hybrid Configuration wizard error “Subtask CheckPrereqs execution failed” for Exchange Server 2013
• 2986779 EMS takes a long time to execute the first command in an Exchange Server 2013 Cumulative Update 5 environment
• 2983512 RPC Client Access service crashes on an on-premises Mailbox server in an Exchange Server 2013 hybrid environment
• 2983426 AutodiscoverSelfTestProbe fails when external URL is not set for EWS virtual directory in Exchange Server 2013
• 2983423 AutodiscoverSelfTestProbe fails when external URL is not set for ECP virtual directory in Exchange Server 2013
• 2983422 The ServerWideOffline component is set to Inactive after Exchange Server 2013 prerequisite check fails
• 2983207 “532 5.3.2″ NDR when you send an email message to a hidden mailbox in an Exchange Server 2013 environment
• 2983066 Removed Default or Anonymous permission for Outlook folders cannot be restored in an Exchange Server 2013 environment
• 2982769 “Topology service cannot find the OWA service” when you perform an eDiscovery search in Exchange Server 2013
• 2982763 Mail-enabled public folder accepts email messages from unauthorized users in an Exchange Server 2013 environment
• 2982762 OAB generation arbitration mailbox can be removed or disabled in an Exchange Server 2013 environment
• 2982760 The Enter key submits duplicate sign-in forms to Outlook Web App in an Exchange Server 2013 environment
• 2982759 You cannot access the archive mailbox of a delegated user after enabling MAPI over HTTP
• 2982017 Incorrect voice mail message duration in an Exchange Server 2013 environment
• 2981835 You cannot add attachments, delete or move many email messages in bulk in Outlook Web App
• 2981466 MAPI/CDO client cannot connect to Exchange Server 2013
• 2977279 You cannot disable journaling for protected voice mail in an Exchange Server 2013 environment
• 2975599 Exchange Server 2010 public folder replication fails in an Exchange Server 2013 environment
• 2975003 Calendar item body disappears in Outlook online mode in an Exchange Server 2013 environment
• 2974339 OAB generation fails if FIPS is used in an Exchange Server 2013 environment
• 2971270 Blank page after you sign in to Exchange Server 2013 EAC (formerly ECP)
• 2970040 Folder Assistant rule does not work correctly in an Exchange Server 2013 environment
• 2965689 EAS device cannot sync free/busy status if an item is created by EWS in an Exchange Server 2013 environment
• 2963590 Message routing latency if IPv6 is enabled in Exchange Server 2013
• 2961715 “Something went wrong” error in Outlook Web App may show an incorrect date
• 2958434 Users cannot access mailboxes in OWA or EAS when mailbox database is removed