| Outlook offline folders are exact replicas of | | | | to log onto the server mailbox. When you |
| Exchange Server mailboxes. They act as slaves | | | | successfully logs into the server, Exchange |
| of the master server folders-the mailboxes. So, if | | | | creates a unique ID key from mailbox and stores |
| anyhow the mailbox is deleted, you cannot access | | | | in the profile. Your profile is checked for this key |
| the OST data as you cannot synchronize it. OST | | | | each time when you try to access the OST file. |
| requires to be synchronized with Exchange | | | | So, if the key is altered by logging into different |
| mailbox in order to convert into PST. But if the | | | | mailbox or server or by modifying the profile, you |
| original mailbox is deleted, the operation fails and | | | | cannot access the OST file. Thus, you can follow |
| the OST file is left as orphaned. However, you | | | | these steps to recover OST data while making |
| can try recovering the data provided the MS | | | | sure that you haven't modified the profile and |
| Exchange profile has not been deleted or modified. | | | | made any attempts to log onto different server |
| But if this is not the case and the profile has been | | | | or mailbox: |
| changed, you should try alternative third-party | | | | 1-You should start Exchange Client OFFLINE and |
| solutions to Convert OST to PST. | | | | click Services in Tools menu |
| For an instance, suppose you log on to Exchange | | | | 2-Click to Add a Personal Folders service |
| Server as administrator and delete a mailbox | | | | 3-Copy the email messages to this new PST file |
| inadvertently. The user starts Outlook email client | | | | and click OK |
| with old OST file, but fails as it receives an OST | | | | 4-Duplicate the above steps for each folder of |
| synchronization error. The operation fails and OST | | | | the file |
| data remains inaccessible. | | | | 5-You can now create a new profile or log onto a |
| Cause | | | | different mailbox or server |
| OST cannot synchronize and is orphaned if the | | | | To recover the data from OST file, for which the |
| corresponding mailbox has been deleted. | | | | profile has been modified or user has attempted |
| Solution | | | | to log onto different account, you need to use a |
| The below solution will work to recover OST | | | | commercial application to perform OST to PST |
| emails if you haven't modified the original profile, | | | | Recovery. These are exclusively built tools with |
| which you used to create the file. Through original | | | | advanced features and algorithms that allow for |
| profile, you need to validate that you are allowed | | | | safe Convert OST to PST. |