Incorrect Authentication Data Outlook Mac 4 Methods to Fix

If you are also facing incorrect authentication data Outlook Mac issue, and don’t know the methods to solve this problem? Then, stop searching for the solution more. We are sharing top four methods to resolve authentication error in Outlook. To solve this error, we are using manual methods and an automatic solution for quick results. The manual methods require basic technical knowledge of Outlook and its settings to fix Outlook Mac server authentication failed issue. Secondly, the manual workarounds are prone to human errors, loss of account access, and time-consuming.

If you want to solve Outlook Mac incorrect authentication data error quickly, without any technical conditions, then you can try professionals tested, trustworthy, secure automatic solution for accurate and reliable results. Whether you cannot send or receive emails, or you permanently locked out your account accidentally. The use of an automated solution is a faster, safer, and more reliable option over free manual methods.

Using freeways often fails to solve the exact issues, is not workable in OLM file corruption cases, and only fixes issues temporarily. However, if you still want to use manual workarounds, then you can use it to solve authentication error in Outlook temporarily.

Resolve Incorrect Authentication Data Outlook Mac Issue Manually

In this guide below, we are sharing three manual methods to fix incorrect authentication data Outlook issue. Firstly, we attempt to update password settings. Then, we use access the account on Outlook Web using same account login credentials. After that, we check & set server settings on Outlook for Mac. So, follow the listed steps inside the methods below to fix authentication error in Outlook for free.

1^st Method: Fix Authentication Error in Outlook with Password Update

1. Open Outlook on your Mac device.
2. Then, click on “Outlook” option, choose “Preferences,” and select “Accounts.”
3. After that, select problematic “email account” which showing authentication error.
4. Then, check the “Username” along with “Password” fields carefully.
5. If you recently changed your “Email Password,” then update it in Outlook immediately.
6. Here, enter the “Correct Password” and click on “Save” button to save changes.
7. Finally, close and restart your Outlook application on your device.
8. Done, your incorrect authentication data Outlook Mac is solved.

2^nd Method: Solve Outlook Mac Incorrect Authentication Data Error Using Web Login

1. Open a “Safari” or “Chrome” browser on your MacOS.
2. Then, search your “Outlook.com” and go to its login page.
3. Now, enter your “Email” along with “Password” and click on “Sign in” button to sign in.
4. If logged in successfully, it means your account is working normally.
5. Done! Now simply restart your Outlook on Mac, it’s starting to work normally.
6. If you face an issue over there, then immediately reset your password from given recovery options.
7. After a successful web login, reopen Outlook on Mac and re-enter your updated credentials in Outlook if required.

3^rd Method: Resolve Outlook Authentication Failed Mac with Server Settings

1. Open Outlook for Mac.
2. Go to “Outlook” option, choose “Preferences” tab and select “Accounts.”
3. Then, select the “Affected Email Account” and click on “Advanced Settings/Server Settings” option to open.
4. Now, verify the following details:
   IMAP/SMTP server addresses.
   Port numbers
   Secure Password Authentication (SPA)
5. Lastly, click on “Save” button to save changes.
6. Done, now restart Outlook and check your incorrect authentication data Outlook Mac issue is solved.

Limitations of Using Manual Methods to Fix Authentication Error in Outlook

• These methods do not help if the issue is not related to the password, but related to server or application corruption.
• If your account’s keychain data gets corrupted, then a password update will not be helpful in this case.
• You may still face errors if your account is locked or restricted by the email provider.
• To attempt all the manual methods, the users have accurate technical knowledge of IMAP/SMTP servers and Outlook.
• The second method only helps in diagnosing the problem, not in fixing Outlook application error.

These were the major drawbacks of manual methods you may face if you attempt any of one to fix Outlook authentication failed Mac.

How to Fix Incorrect Authentication Data Outlook Mac Automatically?

The use of manual methods to resolve incorrect authentication data outlook mac is fine, but as per its limitations listed above, it’s not workable in case of account corruption, application error, and corrupted OLM file. In such a case, you can try a secure desktop-based, offline automatic solution to protect your Outlook Mac data with OLM Converter Toolkit by MailsWare. Simply export your OLM file from your Outlook with its export options, and use this tool to convert OLM to PST format.

After that, simply import converted PST files into your Outlook for Mac. This tool easily converts your OLM files in batches into PST format accurately, with full data integrity, while maintaining folder structure of your OLM files in your Outlook Mac.

Below are listed working steps of this automatic solution that will guide you through the conversion process. Follow them carefully to get a quick result with no data loss.

Steps of Automatic Solution

1. Open the tool on your MacBook Air and click on “Next” button.
2. Now, choose an option between “Select File” and “Select Folder” and hit “Next.”
3. After that, select the desired “Folders” you want back after import from preview panel, and click “Next” button.
4. Then, choose saving option “PST” from the dropdown menu and set “Destination Path.”
5. After that, click on “Next” button to start the conversion process.
6. After completion of this conversion procedure, open Outlook on your Mac device.
7. Now, go to “File” option, choose “Import,” & select “Outlook for Windows archive file (.pst)” option.
8. Finally, hit “Continue” button, select to open “Converted PST” file, & hit “Import.”
9. After that, wait to load PST files in Outlook Mac completely.
10. Now, you can use your Outlook application without facing incorrect authentication data Outlook Mac issue.

Benefits of Automatic Solution

• This software maintained full data integrity during entire conversion process. It also keeps safe metadata and attachments in their original format while converting OLM file into PST.
• You can convert OLM to PDF with same tool and get your OLM files in PDF format to keep them for backup and archive purposes.
• This tool can convert OLM files into more file formats, such as MBOX, EML, TXT, HTML, and 29 others.
• Its UI and UX make this tool easy to use for every type of user, such as technical, non-technical, and newbie users, with complete data security.

Final Verdict

At the conclusion of the blog on the topic of how to fix incorrect authentication data Outlook Mac issue. We have shared three manual methods for authentication error in Outlook. Using all three methods to solve Outlook Mac incorrect authentication data error only works when problem is temporary. But if the issue is from application or arises due to account corruption, then the manual methods fail to fix the issue permanently.

On the other hand, use of an automatic solution provides accurate results with a permanent solution. Now, it’s totally up to you which method you are going to choose for safe fixes.