Some useful Exchange recovery commands for when the sky has fallen, and you don't have a working backup.

eseutil.exe /r E00 /l "C:\Program Files\Exchsrvr\MDBDATA" 

eseutil.exe /p "C:\Program Files\Exchsrvr\MDBDATA\priv1.edb" 

eseutil.exe /d "C:\Program Files\Exchsrvr\MDBDATA\priv1.edb" 

eseutil.exe /p "C:\Program Files\Exchsrvr\MDBDATA\pub1.edb" 

eseutil.exe /d "C:\Program Files\Exchsrvr\MDBDATA\pub1.edb" 

eseutil.exe /r E00 /l "C:\Program Files\Exchsrvr\MDBDATA" 

eseutil.exe /r E00 /l "C:\Program Files\Exchsrvr\MDBDATA" /i