Issues that the update rollup fixes
Update Rollup 1 for Exchange Server 2007 SP3 fixes the issues that are described in the following Microsoft Knowledge Base articles:
2188615 Event ID: 4999 is logged when the EdgeTransport.exe process crashes intermittently on an Exchange Server 2007 server
2203381 "554 5.6.0 STOREDRV.Deliver; Corrupt message content" NDR is generated when you send an email message to an Exchange Server 2007 user
2251714 The connecting information is not logged when a user accesses a mailbox that is hosted on an Exchange Server 2007 server by using POP3 or by using IMAP4
958305 An incorrect user is displayed as the caller in a mail message in an Exchange Server 2007 environment
973040 The Bcc information is lost when the Exchange Server 2003 journalized messages are sent to an Exchange Server 2007 mailbox
973637 Exchange Server 2007 creates incorrect Lotus Notes proxy email addresses
975424 The �legacyExchangeDN� value is shown in the �From� field of an email message instead of the Simple Display Name in an Exchange Server 2007 environment
975993 "The message could not be opened" error message when an Exchange Server 2007 user tries to open or accept a meeting request
976100 Shared calendar items are shown incorrectly in the server time zone instead of the time zone of an Exchange Server 2007 user who is accessing the shared calendar
977189 The meeting time of a meeting forward notification is incorrect on an Exchange Server 2007 server
978144 A warning message is received when you run the Test-ReplicationHealth cmdlet on an Exchange Server 2007 server
978468 You receive an error message and Event ID: 1008 is logged when you move an Exchange Server 2007 mailbox
979038 A memory leak occurs in the Microsoft.Exchange.Monitoring.exe process when you run the Test-OwaConnectivity cmdlet or the Test-ActiveSyncConnectivity cmdlet in Exchange Management Shell on an Exchange Server 2007 server
979194 Excluding domain names from the Sender ID filter does not take effect after you run the Set-SenderIDConfig cmdlet on an Exchange Server 2007 server
979519 The PR_REPORT_TEXT property represents an incorrect read notification in Exchange Server 2007
979803 Internet Explorer unexpectedly focuses on an Exchange Server 2007 user's OWA inbox or on an OWA calendar that is added as a web part on a SharePoint Server-based website
980205 Public folder replication is blocked unexpected in an Exchange Server 2007 environment
980301 The Microsoft Exchange Information Store service stops responding during a Volume Shadow Copy Service backup on an Exchange Server 2007 server
980404 A multibyte character is converted into a �0xFFFD� character or into unrecognized characters when you use Exchange Web Services in an Exchange Server 2007 environment
980725 You experience issues when you move messages from one mailbox folder to another mailbox folder in an Exchange Server 2007 environment
980914 A user does not receive any new email messages by using a third-party POP3 client in a mixed Exchange Server 2007 and Exchange Server 2003 environment
980953 A second dot is added to the file names of the automatic generated attachments on an Exchange Server 2007 SP2 or later version server
981794 The Get-AgentLog cmdlet operation stops, and you receive an error message in Exchange Server 2007
982055 The store.exe process crashes occasionally on an active node when you move the Exchange Virtual Server from an active node to a passive node in an Exchange Server 2007 cluster environment
982099 Unexpected issues occur after you run the Set-mailbox cmdlet on an Exchange Server 2007 server to convert a shared mailbox into a regular mailbox
982118 The VSS backup operation fails occasionally and Event ID: 2034 is generated on an Exchange Server 2007 server
982213 The display name or the address of a user is displayed in garbage characters when you reply to an email message in an Exchange Server 2007 environment
982475 The inline image of an email message that is sent by using OWA with S/MIME enabled is lost for an Exchange Server 2007 user
982542 Attachments of certain email messages disappear at the client-side when you use an ExOLEDB-based application to change email messages in an Exchange Server 2007 environment
982722 It takes a long time to copy or move items from one public folder to another public folder by using Outlook in an Exchange Server 2007 environment
982928 The Msftesql.exe process continues using memory on an Exchange Server 2007 server
983296 Exchange ActiveSync crashes on an Exchange Server 2007 server causing the client synchronization to be unavailable
983447 A NDR is not generated when an email message is not delivered after you set the value for "Maximum number of recipients" of "Transport Settings" to "0" on an Exchange Server 2007 server
983529 The EdgeTransport.exe process crashes and then restarts on an Exchange Server 2007 server
983540 "Http 500" error message when you use Exchange Troubleshooting Assistant on an Exchange Server 2007 Client Access server to diagnose issues
2121947 An Exchange Server 2007 Unified Messaging user cannot play a voice mail if the caller-id of the external caller contains a wildcard character
2291574 "Your S/MIME control is out of date. You must reinstall it." error message in OWA after you install Exchange Server 2007 SP3
2297394 Event ID 214 is logged when you run a backup operation on a passive node after you install Exchange Server 2007 SP3 in an Exchange Server 2007 CCR environment
2314031 An Exchange Server 2007 user has trouble obtaining the contents of public folders in a mixed Exchange Server 2003 and Exchange Server 2007 environment