Can I access Microsoft Outlook PST archives with any other tools?

The .PST file is a proprietary format, and AFAIK, can only be used by Microsoft products.

There are ways to get around this, such as using Thunderbird to open the file and creating a new archive based on the mbox format.

This initial conversion can only be done on Windows because it uses a built-in mail API to access the information, but once you have converted the archive it should be accessible by most email tools, both on Windows and Linux.

libpst is an open source library which can be used to convert a PST file to a collection of mbox files. The latest version now works with the Outlook 2003 format, and it does not require Microsoft Outlook to be installed.

The readpst program is part of libpst, and is packaged for a number of Linux distributions including Ubuntu, RedHat, and Fedora. There does not appear to be a Windows executable available from the primary libpst site so you might have to compile your own from the source code if you wanted to use it on Windows.

There is a tool called EX-Merge that allows you to extract all of the contents of an exchange mailbox. That one is only useful if you have an exchange server to connect to. Another program is a third party conversion utility. It can convert PSTs into a few different formats.

Transcend Utility for PST

Download ExMerge Here