When your email account or mailbox is deleted or removed from the Exchange server, the Outlook OST becomes orphaned and turns inaccessible. Such OST file cannot be accessed through any Outlook profile. To access and transfer mailbox items from such OST files, you can use Stellar Converter for OST to export OST mailbox items to PST format. You may also restore your mailbox on the server by exporting the mail items from OST file to live Exchange or Office 365 account directly.
An OST file may become inaccessible due to damage caused by system crash, virus or malware intrusion, Outlook crash, incompatible Outlook add-in, etc. Stellar Converter for OST software can help you export mailbox items from such an inaccessible OST file to PST format with 100% precision and accuracy. It helps you restore emails, contacts, attachments, and other items, including deleted mail, to a new or existing Outlook profile.
In Outlook, you can export mail items to PST format and contacts in CSV format via Outlook Import Export wizard. This helps you backup mail items. However, when you can’t access your Outlook account or import/export fails due to problem with Outlook profile or OST file, you can use Stellar Converter for OST software. It allows you to export the OST file to PST even when you don’t have access to Outlook profile. Unlike Outlook, the software doesn’t require authentication to scan or export OST to PST.
Stellar OST to PST converter has worked wonders for Outlook 2003 to 2016 conversions of OST Files. This application I use and resort to.
Stellar Converter for OST helps admins extract all mailbox data such as emails, attachments, contacts, calendars, tasks, notes and journals from OST files, even if inaccessible for Outlook.
A brilliant piece of software provided by Stellar "Convert your offline OST to PST file with Stellar OST to PST Converter Tool to get back your Emails" can help you achieve this.
Stellar Converter for OST helps admins extract all mailbox data such as emails, attachments, contacts, calendars, tasks, notes and journals from OST files, even if inaccessible for Outlook, With this tool, we can easily convert any OST file to PST.
I have been using Stellar OST to PST converter since 2010 as an MSP provider using the Tech License and it has worked wonders for Outlook 2003 to 2016 conversions of OST Files.
Stellar Converter for OST readily exports the mailbox data from inaccessible OST file to PST file. It extracts the data from inaccessible OST file and saves it in PST, which can be imported into any Outlook profile on any system. Unlike Outlook Import Export wizard, Stellar Converter for OST provides a quick and simple solution to export mailbox data from OST to PST with the help of a rich GUI. The software doesn’t requires technical proficiency, saves time, and exports mail items from any OST file to PST in a few clicks.
The software exports complete mailbox data, including emails, attachments, contacts, calendars, tasks, etc. from inaccessible OST file to PST file. Alternatively, you can use the Search and Save functionality to choose specific emails or mailbox items to export from the OST file to PST. You also get an enhanced preview of emails, calendars, and deleted items before actually converting the OST and exporting the data to PST. The trial version of the software allows you to export up to 20 emails per folder from the OST file to PST. Apart from PST, the software saves the OST file data in MSG, EML, RTF, HTML, and PDF formats.
You may have encrypted the OST file to safeguard its data. But what happens when such OST file becomes inaccessible? In this situation, you can use Stellar Converter for OST to extract mailbox data from encrypted OST file and export it to PST. The OST PST export software retrieves data from inaccessible, encrypted, and large OST files. It is widely compatible with Office 2019, 2016, 2013 (32-bit and 64-bit versions), Office 2010 (32-bit and 64-bit versions), 2007, 2003, 2002 (XP), & 2000.
Stellar Converter for OST can help you make a smooth transition to cloud. If you're planning to migrate your mailboxes from an inactive on-premises Exchange profile to different Exchange or Office 365, you can use this software to extract the mailbox data from OST and export it directly to live Exchange or Office 365. For exporting OST data to Outlook mail hosted on Office 365 or another live Exchange, you need to just enter the administrator credentials. Once entered, the OST to PST export software connects with Office 365 or live Exchange interface to enable a seamless mailbox migration experience.
MS Outlook: Office 365, 2019, 2016, 2013, 2010, 2007
Corporate, Technician, & Toolkit
English, German, French, Italian, Spanish
Intel-compatible (x86, x64)
Windows 11, 10, 8.1, 8, 7
4 GB minimum (8 GB recommended)
250 MB for installation files
There are various free tools and methods to export mailbox data from OST to PST, but these have certain limitations. For example, the Outlook built-in Import/Export utility needs the associated Exchange account for exporting OST to PST. So, it will not work in case of inaccessible or orphaned OST files. Also, the utility cannot export an OST file if it is inaccessible or encrypted. Another factor is that manual and free tools require technical proficiency to run them correctly, with less reliability and high risks of human error as compared to specialized OST to PST export software that are built for the task.
The process to export IMAP OST file to PST is simple.
Login to Outlook with the associated Exchange account, and then follow these steps:
To export OST to PST by using Stellar Converter for OST, follow these steps:
There is no built-in or custom script for exporting an OST to PST. You can export an IMAP OST to PST by using the Outlook Export/Import utility. If the OST is a standalone orphaned file, use Stellar OST to PST converter to export the mailbox data.