OST2PST

A while ago I needed something to convert a 5GB Outlook OST file to PST format. Turned outAsposehas a good (commercial) API/library for Java to do exactly that. I had not touched Java for 10 years but got things sorted within a few hours thanks to clear instructions and good examples and docs. I just used the example and made minimal changes, nothing more.

Saving to Outlook 2013/2016 PST files is not supported

Download

Get files below or fromReleases page

Jar and wrappers:

• Main executable:ost2pst.jar(verifySHA512SUMS)
• Windows batch file:ost2pst.bat
• Linux/BSD shell script:ost2pst.sh

If you need to install Java use your OS package manager or download it here:JRE8+or alternativelyJavaSE-RE-8+.

Usage

• Windows:ost2pst.bat <input.ost> <output.pst>
• Linux:ost2pst.sh <input.ost> <output.pst>

Or run the jar directly:java -jar ost2pst.jar <input.ost> <output.pst>

Remember you need to have at least JRE8 installed, OpenJDK is untested but should work

Example

C:\src\ost2pst>ost2pst.bat input.ost output.pst

OST2PST (210619)

INFO: Fileformatis"64-bit Unicode"(23)
INFO: Loading file"input.pst"(5GB)
Folder [00]"Public"
Folder [01]"Inbox"
Folder [02]"Outbox"
Folder [03]"Sent Items"

INFO: Converting"input.pst"to"output.ost"511MB/4751MB (11%)|

Building from source

Import intoEclipse:

• pom.xml
• LoadAndConvertOSTFileCLI.java

Get Aspose.Email for Java API/lib (required)

• GitHub Aspose Email-for-Java
• docs.aspose Installation (Maven)
• docs.aspose Aspose.Email java for Eclipse (Maven)

Create runnable Jar in Eclipse

• use Ant to 'Export', 'Java', 'Runnable JAR file' (used forost2pst.jar)
• or alternatively use Maven to build project

TODO

Add new option that tries to read corrupted ost/pst files. Seeherefor more info.

C:\src\ost2pst>ost2pst.bat -c broken.ost

Changelog

20210702

• fixed file size formatting:programming.guide:)
• updated aspose-email lib to 21.5
• removed aspose-email submodule from git repo

20200317

• show file format info
• exits instead of trying to save outlook 2013+ files
• jar also builds in maven now

20200313

• error handling, added notice about outlook '13/16 files
• updated aspose-email lib to 20.2

20200119

• fixed (visual) error before convertion
• improved messages and progress indicator
• updated aspose-email lib to 19.12

20180915

• improved progress indicator
• updated aspose-email lib to 18.8

More info

• Aspose.Email for Java:https://products.aspose /email/java
• What lead me to Aspose:http://wiki.opf-labs.org/pages/viewpage.action?pageId=25887031
• Possible alternativehttps://github /rjohnsondev/java-libpst

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moved from old repo mkorthof/Aspose.Email-for-Java

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