I am working on a archive migration, in which I am extracting mail from 700GB of PST files, and sending it to an email archive. Once a message was extracted, it is deleted from the PST file using a custom utility.
However this leaves me with 700GB of mostly empty PST files.
For compliance reasons, I need to retain the messages that could not be extracted, and I need to reclaim disk space too.
Is there a way to bulk compact the PST files? I can't find much useful software online to do this.
If I take a 500MB PST file and zip it, I am left with a 230MB archive.
However if I use Outlook 2007 to compact it, I am left with a 15MB PST.
Anyone have any ideas on how to bulk compact thousands of PST files? I'm not looking for a solution like CompressPST which removes attachments and whatnot, as the files are 99% empty.
I couldn't find any command line switches for outlook to accomplish this.