Download Microsoft Exchange Server 2010 Rollup 4

Microsoft has released the fourth Rollup for Exchange Server 2010. This update further addresses some issues that may arise in certain cases, such as an imap4 client that may crash when there are S/MIME messages in the mailbox. The corresponding list of changes looks like this:

Issues that the update rollup fixes

Update Rollup 4 for Exchange Server 2010 RTM fixes the issues that are described in the following Microsoft Knowledge Base articles:

• 979342 – An attachment is not visible when an Exchange Server 2010 user opens a signed mail message by using Outlook 2003
• 979517 – You cannot send a message to a Dynamic Distribution Group in a mixed Exchange Server 2007 and Exchange Server 2010 environment
• 979790 – An IMAP4 client crashes when accessing an Exchange Server 2010 mailbox
• 979801 – An error message is generated in Exchange Server 2010 when you use Exchange Troubleshooting Assistant
• 979810 – You cannot connect an Exchange Server 2010 mailbox by using a MAPI client
• 979848 – Event ID 1066 is logged and you cannot move a mailbox from an Exchange Server 2003 server to an Exchange Server 2010 server
• 979862 – Event ID 4999 and Event ID 7031 are logged when you move a mailbox to an Exchange Server 2010 server
• 979921 – You cannot replicate a public folder from one Microsoft Exchange Server 2010 server to another, and Event ID 3079 is logged on the target server
• 980149 – The Add-MailboxDatabaseCopy command fails when it is used to add a database copy to a Database Availability Group in an Exchange Server 2010 environment
• 980353 – A MAPI application that is used to access Exchange Server 2010 mailboxes crashes when the application accesses an address book
• 980354 – “MAPI_E_INVALID_PARAMETER” error message when you copy email messages from an Exchange Server 2010 mailbox
• 980364 – Microsoft Exchange Transport service on an Exchange Server 2010 server crashes when a certain message is processed
• 980701 – An Exchange Server 2010 mailbox user receives a NDR error message when the user sends an email message to multiple internal users
• 980852 – The RpcClientAccess process on an Exchange Server 2010 server crashes when you access a mailbox by using a MAPI application
• 981033 – Error message when you expand the Microsoft Exchange On-Premises node in the EMC of Exchange Server 2010
• 981961 – Event ID 4033 is logged and the Free/Busy replication from an Exchange Server 2003 server to an Exchange Server 2010 server fails
• 982209 – Some embedded messages are corrupted when they are contained in a message that is sent from an Exchange Server 2010 mailbox address
• 982378 – A delegate receives only one meeting request when someone sends a meeting request to several principals in an Exchange Server 2010 RU1 or later environment
• 982944 – The msExchVersion attribute value of a user is stamped incorrectly after you run the Enable-MailUser cmdlet to mail-enable the user
• 983200 – The .xls file as an attachment is empty when you access an Exchange Server 2010 mailbox by using OWA
• 983631 – “redirect it to people or distribution list” rule does not work on an Exchange Server 2010 mailbox address
• 2084061 – A user intermittently fails to access an Exchange Server 2010 mailbox after the mailbox is moved

note Microsoft Update does not detect Update rollups on Exchange Server 2010 Mailbox servers that are part of a database availability group (DAG).

You may want to deploy Update Rollup 4 for Exchange Server 2010 RTM to multiple computers that are running Exchange Server 2010 RTM. Or, you may want to deploy Update Rollup 4 for Exchange Server 2010 RTM to Mailbox servers that are part of a database availability group (DAG). The update rollup is also available from the Microsoft Download Center.