OST is just a pointer to the stuff on the exchange server. You can delete that file and it will rebuild next time you open Outlook, there's not data in it. Converting that to a PST is just a matter of moving the files from the server portion of Outlook to a local email file. Given that the operation is proprietary from Microsoft, I don't see an open source solution.
That said, I also don't see any way to convert it to MBOX except to open mac mail, create a folder "on my mac" and move all the contents there. Once done, don't setup the email as an exchange account, configure as a POP account and don't store mail on the server. Maybe I'm missing the question or the ultimate goal. But the tools you need to accomplish both tasks exist in either Outlook or Mac Mail. If you are looking for an archival solution for born digital records, specifically email, I'm not sure you would want either PST or MBOX since that just spells an emulation nightmare in a few years. Email is new/simple enough for format migration. Again, my apologies if I am missing the question. -mike _______________________________________ Michael Friscia Manager, Digital Library & Programming Services Yale University Library (203) 432-1856 ________________________________________ From: Code for Libraries [CODE4LIB@LISTSERV.ND.EDU] on behalf of Kari R Smith [smit...@mit.edu] Sent: Monday, June 03, 2013 2:38 PM To: CODE4LIB@LISTSERV.ND.EDU Subject: [CODE4LIB] WANTED: Open source solution converting OST to PST and OST to MBOX Anyone point me to an open-source (preferably) or a tried and true solution for 1.. extracting just the PST part of an OST file 2. converting OST file to MBOX format Thanks! Kari R. Smith, Digital Archivist MIT Libraries, Institute Archives and Special Collections 617-258-5568 | smithkr (at) mit.edu http://libraries.mit.edu/archives/
