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If you’ve been struggling with the annoying “[pii_email_4d754ba459eda4988469]” error code then you know how frustrating it can be. This “pii email” gremlin seems to have targeted Outlook (among other Microsoft products) and is causing users no end of grief.

In this blog post, we’ll talk about why the “[pii_email_4d754ba459eda4988469]” error occurs and how you can go about fixing it so that your Outlook account works normally again.

We’ll dive into some troubleshooting steps for both Windows and Mac platforms as well as share some tips on preventing similar errors in the future. Read on to learn more!

What Is [pii_email_4d754ba459eda4988469] Error?

The pii_email_4d754ba459eda4988469 error appears when an email address provided during the registration process for Microsoft Outlook is not recognized by the system.

It may also show up if you are trying to use a previously registered account on a different device or browser.

This error can be caused by entering an incorrect email address, or it may indicate that your account has been blocked due to suspicious activity.

To resolve this issue, simply double-check and make sure that you have entered the correct email address into Outlook. If this does not help, try resetting your password or contacting customer support for further assistance.

Alternatively, you can create a new account with a different address and log in with that instead.

How to Fix [pii_email_4d754ba459eda4988469] Error?

In most cases, the error code “pii_email_4d754ba459eda4988469” is caused by incorrect Outlook settings or corrupted files. To fix this issue, you can try the following solutions:

1. Clear the cache and cookies of your browser.

2. Uninstall and reinstall Microsoft Outlook on your computer.

3. Check if your Outlook account is configured correctly with an SMTP server address and port number.

4. Make sure that no other application or program is interfering with Outlook’s functioning by temporarily disabling them while you use it.

5. Run a virus scan to make sure there are no malicious programs installed on your system that could be preventing Outlook from working properly.

6. Try using a different email client and see if the issue is resolved.

7. Contact Microsoft support for further assistance in resolving this error code.

8. Use an automated Outlook repair tool to fix the error code “pii_email_4d754ba459eda4988469” without any hassles.

These solutions should help you resolve the error code “pii_email_4d754ba459eda4988469” and get Outlook back up and running without any problems.

If none of these solutions work, then it might be worth contacting your email service provider or Microsoft Support directly as they may have additional steps that can be taken to resolve this issue.


The [pii_email_4d754ba459eda4988469] error code is a very common problem faced by most of the Microsoft Outlook users. Though this error code is seen to be occurring mainly in the Outlook application, it can also take place while using other email applications as well such as Gmail, Yahoo Mail, etc.

If you are also one of those who are facing this issue and wants to know about its causes and solutions, then go through this article till the end. Here you will get all your answers related to the [pii_email_4d754ba459eda4988469] error code.

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