6 Simple Steps To Fix [pii_email_37f47c404649338129d6] Error In Outlook

[pii_email_37f47c404649338129d6] error in outlook could be a major hurdle when using the Outlook email client. So what is pii_email_37f47c404649338129d6 and how can it be fixed?

Do you know that this Outlook error can be easily fixed? Yes, this article is a step by step guide to resolve the [pii_email_37f47c404649338129d6] error in Outlook email.

Let's get started to resolve [pii_email_37f47c404649338129d6] error.

The Outlook email send and receive error can happen because of different reasons. Here are the 6 simple and most secure techniques to fix 37f47c404649338129d6 error easily. Before we begin with any of these strategies ensure you have confirmed that your internet is working fine. This error usually happens on your screen if there is no internet access.

Also, make sure you have the account enabled for which this error is occurring. and check if SMPT is set as “Outgoing Mail Server as shown in the picture below.

In the outgoing server tab make sure “My outgoing server (SMTP) requires authentication” is checked. Refer to the image below.


We continue with the basic settings here before we try to resolve [pii_email_37f47c404649338129d6] error.

  1. Go to the “Advanced Settings” tab
  2. Make sure the Outgoing server SMTP port number is set as the same provided by your email service which sometimes is your inter-service provider also.
  3. The connection has to be on the secure side. Select “SSL” in the drop-down option where it says “Use the following type of encrypted connection
  4. Click OK to save the settings.

Here are the 6 simple methods to fix this error in outlook.

Method 1: Repair Outlook

Just like restarting your computer may fix most of the problems in the computer similarly repairing outlook may fix most of the errors including pii_email_37f47c404649338129d6  in the Outlook email client.

One basic troubleshooting technique is to uninstall and reinstall Outlook or to repair the Outlook application. While uninstalling and reinstalling rarely fixes the issue (it will possibly help if the installed program is corrupt).

Reinstalling (without uninstalling Outlook first) will quite often have a similar impact as uninstalling and reinstalling: it will either fix the issue or do nothing. Detect and Repair or Outlook Diagnostics may or may not fix numerous issues but at the same time, it won’t harm the application.

Below are the steps to repair Outlook.

  1. Close Outlook and other Office applications. To do that, right-click on the Outlook icon in the taskbar and click close.
  2. Go to Control Panel (You can do that by typing “Control Panel in the search bar or by going into the settings option).
  3. Click Add or Remove Programs.
  4. Choose Microsoft Office or Outlook, if you have Outlook application only.
  5. Select the Modify, Change, or Repair option.
  6. Select the required option and follow the instructions to complete the repair process.

Method 2: Make sure server requirements are set properly

  1. Start Outlook.
  2. Click on the File tab.
  3. Go to Account Settings.
  4. Select the desired email account.
  5. Click more settings.
  6. Checkmark “My outgoing server “SMTP” requires authentication.
  7. Also, select “Use same settings as my incoming mail server”
  8. Click ok to save the settings.
  9. Restart Outlook and check if [pii_email_37f47c404649338129d6] still persists. If yes then move to method 3.

Method 3: Remove duplicate account to fix [pii_email_37f47c404649338129d6]

Sometimes pii_email error can occur due to the presence of more than single accounts of the same name. Removing the duplicate account may resolve the error.

Steps to remove duplicate Outlook account.

  1. Start Outlook.
  2. Click on the File tab.
  3. Go to Account Settings.
  4. Remove the duplicate account listed.
  5. Close and relaunch Outlook, this should get rid of the error. If not, move to the next method.

Method 4: Replace the outgoing server port number

To do that follow the steps below:

  1. Go to the desired account.
  2. Click more settings.
  3. Go to the “Advanced Tab”.
  4. Replace Outgoing server (SMTP) “465” by “587”.
  5. Click “OK” to save the settings.

Once again restart Outlook to find if the error is gone. If “Yes” you are good to go. If “Not” move on to method 5.


Method 5: Disabling Antivirus

Another reason that you are facing this error is that the antivirus is blocking your mail configuration. To verify you can disable antivirus and check if the issue is fixed.

There are 2 methods to disable antivirus security.

Method 1:

Open Control Panel.

Go to “Security and Maintenance”

Click Security.

Select “View in Windows Security”

Click Disable.

In the same window follow the same steps to disable the “Firewall” if disabling antivirus doesn’t fix the problem.

Method 2:

Disable the antivirus program directly from the app.

  1. Open antivirus.
  2. Go to “Settings”
  3. Select “Disable”

This will disable antivirus for the time limit you choose.

Here we recommend you restart your computer then launch Outlook to check if this troubleshooting method has resolved pii_email_37f47c404649338129d6 this issue. If not then move to the last method.

Important Note: Disabling antivirus and firewall is not recommended. Antivirus and firewall together keep your device safe from a number of viruses, malware, hacker, and numerous other threats that are present there. So we suggest you do this only for the testing purpose, once you find the proper solution, ENABLE ANTIVIRUS AND FIREWALL back to their default state.


Method 6: Reinstall Outlook Program

Follow the steps to uninstall and reinstall Outlook. Remember you can uninstall the whole Office suite or Outlook as a stand-alone application.

Step 1 Uninstall Outlook.

  1. Open “Control Panel.
  2. Go to “Programs and Features.
  3. In the “Uninstall or Change a program section look for Office or Outlook tool.
  4. Click “Uninstall”.
  5. Follow the instructions to complete Outlook uninstall.
  6. Restart the computer.

Step 2 Reinstall Outlook.

  1. Go to your Office or Outlook account.
  2. Download the installation file.
  3. Double click to run the same file.
  4. Follow the instructions to complete the Outlook installation process.
  5. Run Outlook
  6. Configure your account.
  7. Check if the problem is resolved.


We strongly believe that one of the above steps should help you to fix [pii_email_37f47c404649338129d6] error. This may be lengthy and frustrating sometimes. But our aim is to give you something that will benefit you in the long run. If you are still facing the same problem then we suggest you should look for official support from the product manufacturer or the service provider. 

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