MS
outlook is a popular text messaging tool used for sending and
receiving text messages or emails. It has several user friendly
features like large mailbox size, import export management, fast
delivery of emails, multiple file attachment supports, contacts and
many more. You can link MS outlook with POP3/IMAP email server such
as MS exchange. One can also connect his outlook mailbox directly
with internet. MS exchange server provides interface to all outlook
users of a domain network. Email records of the outlook user account
are stored in two files i.e., OST and PST files. OST or offline
storage table is a temporary file that stores all emails of single
outlook user account. When internet services in outlook mailbox is
interrupted or lost, all emails of that account is saved in an
offline file or OST file. When MS outlook is reconnected with
internet, all mail communication of the outlook user during offline
period is transferred from OST to PST file.
However,
many factors prevent OST files to send emails in outlook PST files.
These factors are:
- Intrusion of virus and spyware code through exchange server
- slow internet connection
- Hard disk error
- Fault in networking cable
- Crash of exchange server
OST
file may be damaged due to any of the above mentioned reasons. When
OST files of exchange server become corrupt, all outlook mailboxes
stored in these files also become corrupt. In that situation, users
shall not be able to use their outlook account. You shall get
different error messages while trying to open your outlook mailbox
from the corrupt OST file:
- Cannot open your default email folders. The file xxxx.ost is not an offline folder file
- The file OST_File_Path\outlook.ost is already in use by the maximum number of applications
- Unable to expand the folder. The set of folders could not be opened
- OST file cannot open Outlook
MS
outlook program is equipped with inbuilt recovery tool scanpst.exe to
repair both PST and OST files. Scanpst.exe is saved in different
location of user system. You can find the tool either from the search
box of window start menu or through manual search. The inbuilt OST
file recovery tool of Outlook will retrieves emails and email folders
of outlook mailbox from the corrupt OST file. All retrieved items are
saved by the scanpst in new OST file. However, scanpst.exe fails to
retrieves emails in its exact form from the corrupt OST files.
Earlier versions of the MS outlook restrict the OST and PST file size
up to 2 GB only. The OST file recovery tool of MS outlook also fails
to repair the oversized OST files. Scanpst.exe is suitable for minor
corruption issue of OST and PST file. It cannot be used to fix the
corruption of large or several outlook mailboxes.
Another
way of OST file recovery is making backup of OST files before
corruption using Window backup archive creator or any third party convert OST to PST
software. You shall be able to retrieve outlook mailbox items from
the backup copy in case loss of original files.
If
you don’t have backups of OST files or OST files are severely
damaged, then use proficient third party email recovery software. The
third party OST to PST utility retrieves emails from the
corrupt OST file and saves in PST file.
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