How to Fix Outlook for Mac Error Code 17193? – Quick & Easy Solutions

Ritu Roy | fix how to mac os olm outlook for mac software technology | 4 minutes read | Modified on: 10-01-2026

Error 17193 in Outlook for Mac can be quite alarming, especially when it interrupts important and time-sensitive work. According to the error message displayed on the screen, this issue usually occurs when an email contains large attachments. Outlook then prompts users to remove these files if they are not necessary. However, regardless of the urgency or importance of the attachments, this blog shares effective solutions to help you resolve Outlook for Mac Error Code 17193.

Follow the step-by-step instructions below to fix the issue and check whether it resolves the error on your Mac:

  1. Open Finder on your Mac.
  2. Navigate to the Applications folder.
  3. Open Utilities.
  4. Select Disk Utility.
  5. Choose the disk where Outlook is installed or where the issue is occurring.
  6. Click on First Aid.
  7. Select Run and confirm by clicking Continue.

After the scan and repair process is completed, you should be able to send or receive large email attachments without encountering any errors. However, if your disk becomes overloaded with unnecessary or redundant files, the same problem may reappear. To prevent this, it is recommended to regularly clean up your system and follow best practices to keep your Mac optimized and error-free.

What Causes Outlook for Mac Error 17193?

Outlook for Mac Error Code 17193 can occur due to several underlying reasons. Understanding these causes is essential to preventing the issue from happening again in the future. Below, we have outlined some of the most common factors responsible for this error, along with insights that can help you address them effectively.

Data Storage Issues

One of the primary reasons behind Error 17193 is a problem with the storage drive. If the hard disk contains bad or damaged sectors and Outlook data files are unknowingly saved in those areas, Outlook may fail to access the data properly. In such cases, the Outlook data file can become corrupted, making it unreadable. Repairing or restoring the damaged Outlook file becomes necessary to resolve the issue.

Hardware Malfunction

Hardware-related problems can also trigger this error. When system components fail to properly read, write, or transfer Outlook data, the email files may become damaged. This can result in missing or inaccessible email messages and ultimately lead to Outlook for Mac Error Code 17193.

Power Interruptions

Unexpected power outages while Outlook is accessing or saving data can disrupt the file structure. Such interruptions may cause Outlook data files to become corrupted or, in severe cases, permanently deleted. This disruption often leads to the appearance of Error 17193 on Mac systems.

How to Fix Outlook for Mac Error Code 17193

If you are encountering Outlook for Mac Error Code 17193, follow the detailed solutions outlined below. This step-by-step guide is designed to help you resolve the issue effectively and restore normal email functionality.

Step-by-Step Guide to Resolve Outlook for Mac Error 17193

Access Disk Utility on Mac

  1. Open Finder.
  2. Select Applications from the left-side menu.
  3. Scroll down and open the Utilities folder.
    • Finder is permanently available on the Dock, making it easy to access your applications. Alternatively, you can also open apps using Launchpad.

Use Disk Utility to Check and Repair the Drive

  1. Launch Disk Utility.
    • Disk Utility is a built-in macOS tool that allows users to format, erase, and manage both internal and external storage devices.
    • It can also be used to create, resize, and manage disk volumes efficiently.
    • For systems using RAID configurations, Disk Utility helps combine multiple disks into a single logical unit, improving performance and storage reliability.
  2. From the list of available drives, select the disk that is associated with Outlook or where the error is occurring.
  3. Click First Aid from the top menu.
  4. Choose Run when the prompt appears.
  5. Click Continue to start the scanning and repair process.

Once the process completes, Disk Utility will display the health status of the drive. Messages shown in black indicate that the disk is functioning properly, while warnings or errors will appear in red.

Reduce Attachment Size in Outlook

If the issue persists, reducing the size of email attachments can help:

  1. Open Outlook and go to the Drafts folder.
  2. Select the email message that is causing the error.
  3. Remove large or unnecessary attachments.
  4. Click Send to resend the message.

Creating smaller email files and avoiding oversized attachments can prevent Outlook for Mac Error Code 17193 from occurring again in the future.

Remove Unnecessary Messages from the System

To better manage large email attachments and prevent Outlook for Mac Error 17193, it’s important to remove unnecessary messages from your system. Follow these steps:

  1. Open the Drafts folder and select the message you no longer need to send.
  2. Go to the Home tab and click Delete.
  3. If required, open the Trash folder, select the email again, and tap Delete from the Home tab to remove it permanently.

By following these steps, you can effectively handle large email attachments without running into errors. Keep in mind that when your hard drive is filled with irrelevant or redundant files, Outlook may trigger Error 17193 as a warning, prompting you to take action to maintain smooth functionality.

Conclusion

In this guide, we have outlined several effective methods to resolve Outlook for Mac Error Code 17193. You can choose the solution that best suits your specific situation. However, before applying any fixes, it is strongly recommended to create a backup of your Outlook for Mac data stored in .olm files.

To ensure data safety, you can use reliable tools such as MacArmy OLM Converter for Mac, which allows you to securely convert and preserve OLM files into multiple formats, including PST, PDF, EML, MSG, MBOX, HTML, DOC, TXT, and more.

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