Home » Outlook » Outlook Logging – Enable Logging for Troubleshooting

Outlook Logging – Enable Logging for Troubleshooting

Outlook logging is a powerful tool for diagnosing and resolving issues within the Outlook email client. By enabling and accessing the Outlook logs, system administrators, and IT professionals gain insights into the inner workings of Outlook, allowing them to identify errors, track events, and troubleshoot effectively.

Outlook is a widely used email client, providing a user-friendly interface and robust features, it is not immune to occasional issues that can affect its performance and functionality. To tackle these issues effectively, Outlook provides a logging feature that captures crucial information about its operation and any errors that may arise.

In this article, we will discuss Outlook logging, the purpose of logging in Outlook, how to enable and access logs, analyze Outlook logs, and how it can be used to resolve Outlook-related problems.

What is Outlook Logging?

Microsoft Outlook has a logging feature. This option turns on/off the logging feature for Outlook. Outlook logging records details about the actions, events, and errors that occur within Outlook.

These Outlook logs are used for diagnostic purposes by IT professionals, and system administrators to resolve issues.

What is the Importance of Logging in Outlook?

Outlook logging plays a pivotal role in the performance of the application.

Here’s why logging in Outlook is important:

  • Troubleshooting: The capture logs details provide insights into what happening under the hood, making it easier to diagnose and resolve issues efficiently.
  • Root Cause Analysis: When Outlook encounters errors, logging offers insights about the underlying issues. This data is useful to identify the root cause and address the problem.
  • Performance Optimization: Logging in Outlook can reveal performance bottlenecks, helping the administrators to fine-tune their Outlook setup for optimal speed and efficiency.

How to Enable Outlook Logging?

You need to enable Outlook logging to harness the power of log information.

To turn logging on in Outlook 2016, Outlook 2013, and Outlook 2010, follow the below steps:

  1. Open the Outlook.
  2. Go to the File tab > Options > Advanced.
  3. Scroll down to the Other section, and select the Enable troubleshooting logging(requires restarting Outlook) checkbox.
  4. Click Ok
  5. Restart the Outlook.

To enable logging in Outlook 2007:

  1. Open the Outlook.
  2. Go to the Tools > Options.
  3. On the Other tab, select Advanced Options.
  4. Select the Enable logging (troubleshooting) checkbox.
  5. Click Ok.
  6. Restart the Outlook.

After you enable the logging feature, restart Outlook. When the logging feature is enabled, Logging Enabled appears in the Outlook title bar.

What Information Does Outlook Logging Record?

The logging option in Outlook logs information about the following features:

  • Calendar: Transactions that are generated by Outlook features, by user actions, or by the MAPI Calendar table including inbox autoprocessing, free/busy publishing, reminders, Calendar item actions, and resource booking.

The main purpose of the Calender logging feature is to quickly identify scenarios such as meetings inexplicably deleted from a Calendar folder.

  • Free/Busy time changes
  • Offline Address Book
  • MAPI Transactions – which is used with Microsoft Exchange, POP3, Internet Message Protocol (IMAP), Simple Mail Transfer Protocol (SMTP), and Lightweight Directory Access Protocol (LDAP).
  • Communication with Exchange, POP3, SMTP, and IMAP servers.

How to Access the Outlook Logs

Outlook logs are typically stored as text files on the computer. The location of the log files depends on your Outlook version and Windows operating system.

  • Locate the Log Files: Outlook log files are usually stored in subfolders of the Temp folder. The default log file location is: c:\Users\username\AppData\Local\Temp\Outlook Logging

By default, Local Settings and AppData folders are hidden. You can also use the %temp%\Outlook Logging path in the Run command to open the folder.

  • View Log Files: Outlook files are stored in plain text. To protect your data, the calendar log file is stored in binary that can’t be read without a conversion process. The file opmlog.log is a Transport type of log file that stores the content in a plain text file and can be opened with Notepad.

How to Analyze Outlook Logs?

Outlook contains information, including timestamps, actions, event descriptions, error codes, and more. Here are some of the common information you will find in Outlook logs:

  • TimeStamps: Log entries include the date and time when an event occurred. It helps you to track the sequences of actions.
  • Event Descriptions: These provide details about specific actions or events within Outlook, such as sending an email, receiving an email, synchronizing folders, etc..
  • Error Codes: When an error occurs, Outlook often logs an associated error code. These codes can be used to identify the nature of the problem and its solution.
  • Client and Server Communication: Logs contain information about communication between Outlook and email servers. This information can be valuable when diagnosing email synchronization issues.


Logging is a powerful feature in Outlook to diagnose and resolve issues within the Outlook email client. By enabling and accessing the logs, support staff can troubleshoot the problems and find the solution.

You can find more topics about PowerShell Active Directory commands and PowerShell basics on the ShellGeek home page.

Leave a Comment