How to Fix Outlook Mac Error Code 17199?

Read time: 5 minutes

Quick Overview: When Outlook for Mac gives an error ‘A message in Outbox could not be sent’ with error code 17199, you cannot send any email. To fix such an error, check your internet connectivity or use Microsoft Database utility for a quick fix. Re-enter username and password and look to delete any pending emails from Mac Outlook.

Imagine you are sending an email from Mac Outlook but you are being restricted again and again. You must be scratching your head as an error pop-up is killing your productivity. Here is the error message you will witness:

Error code: 17199 “An unknown error has occurred in Outlook”

Error code: 17199 “A message in your Outlook could not be sent”

Error code: 17199 “The account which created the message could not be found”

This error prevents the user from sending emails in Microsoft Outlook 2011. There may be a variety of reasons for this error, but the primary cause is when the OLM files are corrupted due to a malware attack at the OLM file location in the Outlook for Mac application, affecting the integrity of the data file, and Microsoft Outlook 2011 cannot read them.

This guide will help you fix error code 17199 in Mac Outlook song with the possible causes that triggers such an error. Follow our expert guidance below.

Why Outlook Shows Error Code 17199 on Mac?

OLK File	Purpose
OLK Mail Account	Stores email account settings and configuration.
OLK Message	Stores email messages.
OLK Contact	Stores contact information.
OLK Calendar Event	Stores calendar events and meetings.
OLK Category	Stores Outlook categories.
OLK Signature	Stores email signatures.

Reasons for Existence of Mac Outlook 17199 Error

Various reasons cause error 17199 to prevail in your system. Below are some of the major reasons that are responsible for error:

Microsoft Exchange Server crashes.
Corrupt OLM files.
Virus, ransomware, and malware attacks on your system.
Improper installation of Microsoft Outlook in your system.
Unexpected power failure.
Media storage corruption.
System crash or network failure.
Importing OLM files into Outlook for Windows without any format change.
Oversized OLM file issues.

Ways to Fix Mac Outlook 17199 Error

Take a look at the tried and tested solutions to fix Outlook for Mac error code 17199 easily. Before carrying out any method, do check your internet connection first.

Note: To check the internet, log into one of the web email accounts, such as Gmail or Google+ to verify whether the user can connect to the web services or not. If it is working, then internet connectivity might not be the issue.

Way 1. Enter the Username & Password Again

To resolve Mac Outlook 17199 error, you need to enter your Outlook 2011 account credentials again and restart the software. To do so, follow the steps below.

Open Outlook 2011 on your Mac. Go to the Tools option and tap Accounts.
From the left pane, choose your email account in the new window and enter your email address and password.
Check for the Outgoing server & Incoming server settings.
Now, exit the window and restart the software.

Now, check for the prevalence of error 17199 by sending an email in Outlook. In case the error still prevails, go for the next solution.

Way 2. Remove Emails from the Outlook

To troubleshoot Mac Outlook 17199 error, delete all the pending emails from the Mac Outlook 2011 folder and this might eliminate all such OLM file errors. You can remove the entire mail outbox and select the option Send/Receive. After deleting all the emails, send a sample email and check whether the error is fixed or not.

Way 3. Use Microsoft Database Utility [For Outlook 2011 Users]

Microsoft database utility is an in-built tool of MS Office that rebuilds the Office database, creates a new identity, and sets the default identity. With this tool, the users can also fix the Outlook for Mac not syncing with exchange server problem. To fix the Outlook 2011 error code 17199, you can use the Microsoft database utility tool easily with the steps given below.

Go to the location: /Applications/Microsoft Office/Office/ and access the Microsoft Database Utility on your Mac.
As you begin the tool, it will start scanning the corrupted OLM files.
After successfully detecting the issue, it self-repairs them in a matter of seconds.
Once the repair is done, restart the PC and check for the existence of the error.

Note: To fix Mac Outlook 17199 error, you can also rename your existing identity or create a new identity with the Microsoft Database Utility.

Way 4. Use the Outlook Profile Manager [For Outlook 2016 Version and Later]

Follow the steps to use the Outlook Profile Manager and fix Mac Outlook 17199 error with ease.

Navigate to Applications.
Right-click and choose Microsoft Outlook > Show Package Contents
Go to: Content > SharedSupport
Access the Outlook Profile Manager.
Rename or edit the existing Outlook profile.
In case it can;t be done, tap on Create a New Profile (+).
Configure your email account and make the profile default.

What to Do If Error Code 17199 Still Persists?

After executing manual approaches, if you are still facing OLM corruption issues, an alternate option can also be the OLM to PST Converter tool that enables you to repair and recover the corrupted & damaged OLM files easily.

Enabled with top-quality features, you can easily fix error code 17199 in Mac Outlook. Carry out bulk migration and use File Analysis reports for data accuracy. With full support for Outlook, the tool offers a free trial version for hands-on experience of the features.

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Closing Thoughts

This article includes all the aspects related to the Mac Outlook 17199 error, ranging from the causes of its occurrence to the easy solutions to this OLM corruption problem. With these methods, you can quickly get rid of the Mac Outlook 17199 error by following the stepwise procedure. Along with manual methods, you can also use the OLM to PST converter tool to resolve severe OLM corruption problems. Ideal for tech and non-tech users.