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How to Access Outlook Emails from Orphan OST Files

MS Exchange Server allows configuration of Outlook account that creates an Offline Outlook file, OST enabling its user to work in offline mode. Since Exchange binds the OST file to a particular MAPI profile, it can only be accessed on the Outlook profile on which it was created. Due to this reason, OST file is very much prone of getting corrupted or orphaned. In the blog, we will be studying on how to access Outlook Emails from Orphan OST files.

What makes OST files orphaned?

Some of the reasons that could make the OST file orphaned are as follows:

Unintentional Deletion or Dismounted Exchange Mailbox : If the mailbox on the Exchange Server on which the OST file was originally created is deleted or disabled by Server Administrator, the contents of that OST file becomes inaccessible and thereby making it orphaned.

Virus Intrusion on the System : Another reason for making OST files orphaned is due to virus or other malware attacks on the system that could infect/damage the databases of Exchange Server. It will make the mailboxes unusable leading to the orphaned state of OST files.

Destruction of Storage Location : If the storage media such as hard disk contains some bad sectors, on which the Exchange Server databases was stored, then some part of the database file can become unreadable, making the OST files associated orphaned.

Abnormal System Shutdown: If the unexpected power failure interrupts while carrying out the synchronization process with OST file and Exchange Server, it will damage the databases & can make orphan OST files.

How to Access Outlook Emails from Orphan OST Files

User can try to re-establish the synchronization between the Outlook OST file and MS Exchange Server to make the orphaned OST file usable with the steps below:

  • We need to connect MS Outlook with the original MAPI
  • Secondly, connect the MAPI address to original Exchange Server

However, this method will only work if the user has original MAPI Address. If there is no access to the original MAPI address, user can opt for third party applications like Microsoft Outlook OST to PST Converter. The Tool will effortlessly recover the entire item such as emails, contacts, calendar, etc. that was present in orphaned OST file and save the recovered data in a healthy PST file. It does not impose any limitation on the size of orphaned OST file and has capability that supports recovery of permanently deleted data items.

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This post first appeared on Technical Way To Transfer From OST To PST Format, please read the originial post: here

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How to Access Outlook Emails from Orphan OST Files


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