FYI: Update Rollup 4 for Exchange Server 2007 SP1 has been released
Download information for Update Rollup 4 for Exchange 2007 SP1
The update is live at:
https://support.microsoft.com/?kbid=952580
The rollup is marked as “v2” in the file name i.e. Exchange2007-KB952580-v2-x64-EN.msp to account for the accidental release of v1 via Microsoft Update on 9th September. The rollup will be available via the download center link starting today. It will be available via Microsoft Update starting 10/14 since Microsoft Update releases patches which may cause a reboot only on the 2nd and 4th Tuesday of the month.