How To Permanently Fix [pii_email_37f47c404649338129d6] Error Code ?

Millions of users around the world are getting [pii_email_37f47c404649338129d6] outlook errors while sending emails. Nowadays, many people using Microsoft Outlook as their primary email inbox so it is an essential duty to solve all the issues.

Microsoft Outlook is an amazing application that helps receive emails from various other websites and applications you have linked to it. Yet, people are continuously reporting about the issue while sending emails.

Cause of [pii_email_37f47c404649338129d6] Error 

The issue comes when they try to send an email pop up dialogue box continuously appears, showing a message [pii_email_37f47c404649338129d6]. Here are some of the main reasons why the error message pops up all the time while sending emails.

  1. Using an older version of Microsoft Outlook is the main reason this error comes up.
  2. Cache and cookies can be the cause of error messages.
  3. Wrong settings of the record.
  4. The main reason for this error is the conflict with the STMP server.
  5. The primary reason can be the wrong installment of the software fondness.

Read Also: Microsoft Office to Get a New Version Without Subscription Model in Second Half of 2021

Moreover, if once the error message pops up, you are unable to send or even receive an email from people or websites. But you do not need to worry. Some brilliants hacks can help you overcome this error in no time. In this article, we dive into the solutions to the problem people are facing due to error [pii_email_37f47c404649338129d6].

Hacks to fix Error [pii_email_37f47c404649338129d6] 

There are many solutions to fix this Microsoft error, but we will discuss the top six that is easiest and works well. The following hacks will help you in your way to send and receive emails without getting an error message.

Update to the newer version of Microsoft Outlook 

The first step you need to check your Microsoft Outlook version. The error often comes up when you are using an old version of MS Outlook when new versions are already available. So, firstly update your MS Outlook.

To update your MS Office, you can follow the steps below.

  1. Open Microsoft application on your pc
  2. Go to the Files option on the top left corner.
  3. Select Account from the menu
  4. Under the product information menu, select the Update option.
  5. Finally, click on the Update Now option.

You will see a dialogue box saying, Downloading Microsoft Updates. After it is complete, you can now easily send and receive emails without getting the error message in your way of communication.

Try Changing Server Port Number 

If the error [pii_email_37f47c404649338129d6] still comes up and frustrates you during the prime works hours, you can try changing the server port numbers. Often due to a mismatch of server port numbers, Outlook users face difficulty in sending an email around.

Here are easy steps you can follow to change your server port number.

  1. Open Microsoft Outlook.
  2. Click on the Files option.
  3. Click on the Account Setting button, and from the drop-down menu, select Account Settings.
  4. In the Email, tab selects the email account you want to change the port number.
  5. Then click on the Change button.
  6. You will see a change account dialogue box. Select the More Settings option.
  7. Click on the Advanced tab in the Internet Email Settings, dialogue box.
  8. In the box next to Outgoing server (STMP), change the port number.
  9. Click Ok.

The new settings save after these steps with a different server port number. You can now restart the computer and work with Microsoft Outlook without the error frustrations.

Remove Duplicate Accounts from Microsoft Outlook

If you are still facing the error issue in Microsoft Outlook, then you must delete or remove your duplicate accounts. Microsoft Outlook provides the feature to manage multiple accounts at the same time. This feature sometimes is the reason you see the error [pii_email_37f47c404649338129d6] message when you try to send an email. This step might hopefully work for you. To remove duplicate accounts, you can follow these steps. Open Microsoft Outlook.

  1. Click on the Files option.
  2. Click on the Account Setting button, and from the drop-down menu, select Account Settings.
  3. In the Email, selects the duplicate email account you want to remove.
  4. Click on the Remove button.
  5. The final confirmation dialogue box will pop up. Click on the Ok button.

Your duplicate account is no more in Microsoft Office. You can now try sending emails. If still, the problem persists, you can move on to the next quick solution or try contacting the support team at Microsoft.

Fix the Issue via Control Panel 

There are times when the Office installation errors need some repair. It may be one of the reasons you see an error [pii_email_37f47c404649338129d6] message every time you try to send an email. To fix the installation error, you follow the below steps.

  1. Click on the start button on your taskbar.
  2. In the search bar, write the control panel and open it.
  3. Click on the Programs and Features option available.
  4. Under it will you find the option to Uninstall a Program. Click on it.
  5. Select Microsoft Office 365 from the list.
  6. Now, left-click and select the Change option.
  7. Follow the on-screen instructions, and you will fix the issue.

After these steps, restart your computer and open Microsoft Office. Check for the issue and again and, probably this time, your Microsoft Office will work fine.

Try Inspecting Work Requisite Settings 

Sometimes changing the email settings help cover up the error message problem that comes up. Authenticating the sender and receiver of email helps resolve the problem. So, to evaluate the worker requisite settings, you can follow the below steps.

  1. Open Microsoft Outlook on your Personal Computer
  2. Click on the File button.
  3. Scroll through the menu and select the Record Settings option.
  4. Select the Email Tab
  5. From here, you have to choose your email account.
  6. Next, you have to choose a record from Outlook.
  7. Now, click on the More Settings option.
  8. Select the Web-Email Settings tab.
  9. Next, select the Active Worker tab.
  10. Finally, tick on the My Outgoing Server (STMP) Requires Authentication checkbox.
  11. Lastly, click on the OK button the save the settings.
  12. You see a confirmation dialogue box. Click Yes, and you are done.

Now, restart your Microsoft Outlook and try sending an email. The issue will be no more in your Outlook account.

Reinstall Microsoft Outlook on your PC  

For the final step, you can try reinstalling Microsoft Outlook from your personal computer. To uninstall Microsoft Office from your computer, follow the steps below.

  1. Click on the start button on your taskbar.
  2. In the search bar, write the control panel and open it.
  3. Click on the Programs and Features option available.
  4. Under it will you find the option to Uninstall a Program. Click on it.
  5. Select Microsoft Office 365 from the list.
  6. Left-click and select the Uninstall option.
  7. Follow some of the dialogue boxes and, you are done uninstalling.

One once you uninstall Microsoft Office, you need to reinstall it on your personal computer. Install Microsoft Office and try running Microsoft Outlook. If you do not face the error again while sending a message, you are good to go.

Troubleshoot automatic repair

If the other solutions we have provided did not work and the error is still not gone. You can try this method because it is considered very effective against this error.

You can download the automatic troubleshooting tool that will automatically install and configure it on your PC. The bug in Microsoft fixes once you launch the tool. However, you have to know some technicalities before you download the tool on your window.

When you download the tool from any source, multiple options will open up, and you must click on all the permission links to confirm the download.

You have to keep in mind while downloading the tool on the PC that you keep the application in the same folder in which you have Microsoft office.

Once the application is installed, all you have to do is launch the application, and it will automatically start the diagnosis problem and find all the possible errors. Once it finishes the diagnosis, click on the troubleshoot option. The software will automatically troubleshoot the error and fix it without any hassle.

Once it is done with the troubleshooting, restart your window and check if the problem is still there or not. If you still find the error, you have to repeat the process.

You have to keep in mind while downloading the tool that you should download it from any reliable source because it is a possibility that while finding a solution for the one error, you might get different viruses that are not good for the windows.

To avoid the situation mentioned earlier, you can also download a good anti-virus, so if the file you are downloading contains any viruses, you would be notified.


It is an inbox repair utility from MS Outlook widely used to repair the damaged PST files. Therefore, if you want to fix this error, you need to follow these few simple steps:

  • Launch windows explorer on your PC
  • Find the SCANPST.exe in the folder of Microsoft office
  • Once you are done with it, run the program on your PC and continue the repair process.
  • Now, create a backup in your desired folder and choose the repair option to end the process.

Use Single Microsoft

In case you have logged in through multiple Microsoft accounts, this can be the reason for this error. So, logging out from all accounts and signing in from just one account can resolve this issue. However, you may log in from other accounts one by one if the issue is permanently resolved.

Clear cache

As you know that cache and cookies can be one of the reasons for this sort of error.  Thus, clearing cache and cookie files from the browser can help you fix this issue. This may also resolve other common errors.

Avoid using the pirated application.

In case you are using pirated version of Microsoft, this might be causing this error. So, to be on the safe side, it’s recommended to use a genuine and licensed version of Microsoft.

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