OLM stands for Outlook for Mac File. The file with .olm extension contains a database of emails, calendars, contacts, notes, tasks, etc. It is a data file of Mac Outlook email client. An individual OLM file contains all Outlook folders of end users and stores messages with their associated data archived by the program connected to Exchange Server.
This file comes in existence with Outlook 2011 for Mac. OLM files are only used by Mac Outlook and can’t be opened on any other application.
Size of Mac Outlook OLM File
The maximum size of OLM file is not defined anywhere but generally it does not exceed 2 GB in order to minimize the corruption issue.
Technical Specifications
File Developer Program – Outlook for Mac
File Type – Database file
File Extension – .olm
MIME Type – Application/octet-stream
Organization – Microsoft Corporation
Mac Outlook OLM File Location
Database file – /Documents/Microsoft User Data/Office 2011 Identities/Main Identity/
Storage Folders – /Documents/Microsoft User Data/Office 2011 Identities/Main Identity/Data Records
OLM files are used only by Outlook Mac and can’t be accessed by Windows version of Outlook. However using multiple applications, OLM files can be opened. These applications are OLM to PST Converter, Microsoft Outlook 365, etc.
Outlook for Mac comes with numerous features that make communication easier for users. But several situations occur when OLM file generates error. Out of various OLM errors, error code 17897 is the one of the common errors.
This error message occurs when users try to send a message from Mac Outlook 2011 and the procedure breaks due to the issue of server authentication. Therefore, it becomes important for users to rectify the issue immediately, for eliminating the interruption as early as possible.
There are several methods to handle this error –