Issues that the update rollup fixes
Update Rollup 2 for Exchange Server 2007 SP3 fixes the issues that are described in the following Microsoft Knowledge Base articles:
972186 Some functions do not work if you install Security Configuration Wizard on a Windows Server 2008 SP2-based Exchange Server 2007
979046 Attachments are empty when you save them by using OWA after you have applied the update of KB 958881 on an Exchange Server 2007
980038 The Microsoft Exchange System Attendant service crashes intermittently in the Oabgen.dll module on an Exchange Server 2007 server
981602 Event ID: 4999 is frequently generated in a mixed Exchange Server 2007 and Exchange Server 2003 environment
982476 The Imap4.exe process crashes intermittently on an Exchange Server 2007 server
982478 Notes URL links in a plain text message are not clickable when you open this message by using OWA in an Exchange Server 2007 environment
2028675 The MSExchangeFDS.exe process occupies lots of memory if there are thousands of OABs created on an Exchange Server 2007 server
2029086 Some characters of an email message are displayed in an incorrect text size when you access your mailbox by using OWA in Exchange Server 2007
2032216 The Microsoft Exchange Information Store service crashes on an Exchange Server 2007 server when you start it or try to mount certain databases
2121536 Exchange Server 2007 cannot index a message
2201236 The "All Day" field is marked with "No" when you access a meeting request that has a duration time that is more than 24 hours by using a mobile client through ActiveSync in an Exchange Server 2007 environment
2203212 Certain mailboxes cannot be moved from an Exchange Server 2007 server to an Exchange Server 2010 server
2210042 A sub contact folder is still visible after you set the "PR_ATTR_HIDDEN" attribute to "True" in an Exchange Server 2007 environment
2230824 The Microsoft.Exchange.POP3.exe process or the Microsoft.Exchange.Imap4.exe process may crash after you enable protocol logging for POP3 or IMAP4 on an Exchange Server 2007 server
2249814 You receive misleading information when you run the "New-TestCasConnectivityUser.ps1" script on an Exchange Server 2007 server
2263342 "The operation failed" error message in Outlook client when a user sends a recurring meeting request with an email message attachment in an Exchange Server 2007 SP2 environment
2276439 The Microsoft.Exchange.IMAP4.exe process crashes when an IMAP4 client retrieves a meeting request that includes exception attachments in an Exchange Server 2007 environment
2280234 "Your POP3 server has not responded in 60 seconds." error message when a POP3 client connects to an Exchange Server 2007 Client Access server to access an Exchange Server 2003 mailbox
2282570 "550 5.1.3" NDR message when an Exchange Server 2007 user sends an email message to a recipient
2265306 The Exchange Information Store service stops responding when you perform a search operation on an Exchange Server 2007 mailbox in Outlook
2282746 The "Private" sensitivity status of an occurrence of a recurring meeting request is lost when you edit the occurrence in OWA in an Exchange Server 2007 environment
2286782 The response details are still included in the response email message when you set the "EnableResponseDetails" property to "False" in an Exchange Server 2007 environment
2290105 A shared document cannot be open by using OWA after you install Exchange Server 2007 SP3 on an Exchange Server 2007 server
2290159 The POP3 service crashes on an Exchange Server 2007 server
2344372 You cannot move mailboxes to an Exchange Server 2007 server
2362371 You receive a "Success" response when using the Test-Mailflow command on an invalid or nonexistent external email address in an Exchange Server 2007 environment
2384754 "Unable to identify local server row in Replication state table for this FID" error message when you run the Information Store Integrity Checker tool on an Exchange Server 2007 server
2387915 The ESEBack component does not support ETL tracing on an Exchange Server 2007 server
2388057 The Exchange Transport service crashes on Exchange Server 2007 servers in a mixed Exchange Server 2007 and Exchange Server 2010 environment
2394731 An HTML attachment of a shared mailbox cannot be saved when you set the "BypassOwaHTMLAttachmentFiltering" setting to "True" in an Exchange Server 2007 environment
2424499 Exchange Server 2007 does not support to assign a mailbox with the "Send on behalf" permission of a security group in the EMC or in the EMS
2427297 The created time and the modified time of an attachment are incorrect when you save an email message on an Exchange Server 2007 mailbox
2430674 The "Leave message intact" method in a Folder Assistant rule does not work when you post an item by using OWA in an Exchange Server 2007 environment