Microsoft has released Exchange 2010 SP3 Rollup 2 yesterday. This rollup will fix the following issues:

  • 2837926 Error message when you try to activate a passive copy of an Exchange Server 2010 SP3 database: “File check failed”
  • 2841150 Cannot change a distribution group that contains more than 1,800 members by using ECP in OWA in an Exchange Server 2010 environment
  • 2851419 Slow performance in some databases after Exchange Server 2010 is running continuously for at least 23 days
  • 2853899 Only the first page of an S/MIME signed or encrypted message is printed by using OWA in an Exchange Server 2010 environment
  • 2854564 Messaging Records Management 2.0 policy can’t be applied in an Exchange Server 2010 environment
  • 2855083 Public Folder contents are not replicated successfully from Exchange Server 2003 or Exchange Server 2007 to Exchange Server 2010
  • 2859596 Event ID 4999 when you use a disclaimer transport rule in an environment that has Update Rollup 1 for Exchange Server 2010 SP3 installed
  • 2860037 iOS devices cannot synchronize mailboxes in an Exchange Server 2010 environment
  • 2861118 W3wp.exe process for the MSExchangeSyncAppPool application pool crashes in an Exchange Server 2010 SP2 or SP3 environment
  • 2863310 You cannot send an RTF email message that contains an embedded picture to an external recipient in an Exchange Server 2010 SP3 environment
  • 2863473 Users cannot access Outlook mailboxes that connect to a Client Access server array in an Exchange Server 2010 environment
  • 2866913 Outlook prompts to send a response to an additional update even though the response request is disabled in an Exchange Server 2010 environment
  • 2870028 EdgeTransport.exe crashes when an email message without a sender address is sent to an Exchange Server 2010 Hub Transport server
  • 2871758 EdgeTransport.exe process consumes excessive CPU resources on an Exchange Server 2010 Edge Transport server
  • 2873477 All messages are stamped by MRM if a deletion tag in a retention policy is configured in an Exchange Server 2010 environment

Especially when you are planning to migrate from Exchange 2010 from Exchange 2003 or Exchange 2007 this rollup is recommended. The rollup fixes an issue which can occur with Public Folder replication between Exchange 2003/2007 and Exchange 2010. Because replicating the public folder content is one of the steps you might see this issue if you won’t deploy Exchange 2010 SP3 rollup 2.

The second interesting thing in the release notes is a fix for the MsExchangeSyncAppPool which crashes. This issue occurs only when offering ActiveSync services to your end-users and you will use Apple devices. In this case it can happen that the CPU usage on the CAS is high (between 80% and 100%). Users might in this case not be able to sync their mailbox content because throttling is applied. Cause of this issue is the throttling mechanism. Exchange 2010 SP3 Rollup 2 contains a fix for this issue which should prevent this issue from occurring again.

Looking at the third issue you may think what? Slower performance which is experienced by users when their mailbox is hosted in a database which his created after Exchange 2010 SP3. This problem occurs only if the database is online for more then 23 days.

You can download Exchange 2010 SP3 rollup 2via the link below:



Johan Veldhuis