A Sneak Peak on OLM Corruption and Recovery

MS Outlook is an email client that is available for different Operating Systems such as for Windows, Mac, and Linux. With the availability of MS Outlook for Mac, Apple users can also avail various advantages of this very efficient email client. Now OS X users can take the benefit of Contacts management and Calendar maintenance within the mailbox. Just like storage of data on user’s hard drive in PST file in Outlook for Windows, the data of Mac users using Outlook 2011 is saved on the OLM file.

The OLM file is repository of data of Mac users of MS Outlook, which contains their emails, contacts, and other mailbox items on their system. Like PST, OLM too is a sensitive file and its corruption can lead to inaccessibility of all the data stored in Outlook mailbox. Some of the common scenarios that corrupt OLM files are:

  • At times Mac users perform interrupted installation of Outlook on their machine, which causes corruption in OLM file.
  • Virus infection on Mac through the network is another prominent cause that is responsible for the corruption of OLM file.
  • Corruption in the hard disk or portable data store media where Outlook 2011 for Mac is installed also can corrupt OLM file.
  • Microsoft Exchange Server crash.

With all aforementioned reasons for corruption of OLM file, there can be various other reasons as well that can corrupt this file and cause inaccessibility of all the data stored in it.  The corruption in OLM file is generally seen in the form of an error message, which occurs when users try to open this file. Some common error messages when OLM gets corrupt are:

  • "An unknown error has occurred in Outlook. Error code - 17199"
  • "Cannot find [PATH]\OLM.DLL"
  • "This application failed to start because OLM.DLL was not found. Re-installing the application may fix this problem"

Apart from above mentioned error messages there can be various other messages that may cause the inaccessibility of all the data stored in your Outlook OLM file. The best way to overcome any kind of OLM corruption issues and hence data loss is replacing the corrupt file with its backup. However, in the unavailability of proper or updated backup, use of a professional OLM repair software is recommended. 

Professional OLM repair software as mentioned in the reference : http://www.stellaroutlooktools.com/scan/olm-repair.php efficiently repairs corrupt or damaged OLM files created in MS Outlook 2011 and thus restore all the inaccessible mailbox items. Most of the reliable tools of this category repair even severely damaged Outlook OLM files and without causing loss of email items like emails, attachments, address book, calendars, notes, and tasks. Generally all tools of this category display the summary of the recovery process and provide preview of all recoverable email objects. Hence use of professional tool is always a better option to overcome Outlook mailbox data loss that occurs due to OLM corruption and unavailability of OLM backup.

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