How to Fix [pii_email_37f47c404649338129d6] Error Code?

How to Fix [pii_email_37f47c404649338129d6] Error Code?

What is error [pii_email_37f47c404649338129d6] and why does it occur?

Error no: [pii_email_37f47c404649338129d6] is due to a conflict with the SMTP server and occurs due to misconfiguration of your software preferences. You should verify that all parameters entered are correct with port numbers, authentications and secure connection.

How to fix the  [pii_email_37f47c404649338129d6] Error Code?

There are many solutions to solve this error, however, we are going to discuss the 6 easiest and most practical methods to solve this error as fast as an instant.

Before beginning the solution, check your account settings as follows:

Click Tools Menu, select an account causing the problem, and click properties.

Check if the name of the outgoing mail server (SMTP) is correct. As picture below:

outgoing mail server

If the server requires authentication Checkmark in My server requires authentication.

server requires authentication

Click on More Settings

Verify that the SMTP port number is the same as the one indicated by your FAE.

If the connection needs to be secure, check the brand, this server requires a secure SSL connection. Like the picture below :

secure SSL connection

my server requires a secure connection

8 Easier Methods to Fix the [pii_email_37f47c404649338129d6] Error

Microsoft Outlook error [pii_email_37f47c404649338129d6] occurs in Windows 10 indicating the problem with Outlook Express or Windows Mail. This error usually occurs due to conflict between SMTP servers. When a user tries to send mail without proper account settings.

In this guide, we are going to classify 6 simple methods to solve the error [pii_email_37f47c404649338129d6] that could help you.

Method 1: Fix through the Programs and Features tab.

First of all, please try to fix this Outlook Express error through the program and features using the automatic repair tool as below:

  • Click the Windows button and look for programs and features (you can also open the control panel and go to programs and features)
  • Look for Microsoft Office 365 in programs and features. (or select any applicable office application)
  • At the top of the Programs and Features window, click edit, select ‘Repair’ and follow the on-screen instructions.
  • When the processing is complete, restart Outlook and check if the error code clears, if it persists try method 2.

Method 2. Verify the server requirements configuration as follows:

  • Open panorama of applications.
  • Open document.
  • Account settings.
  • Click on the email tab of the account settings window and you will see the following window as shown below:account settings
  • Select your email account from the list.
  • Click on the email account and then click on more settings.
  • Now open the internet email settings.
  • Open the outgoing server tab.
  • Check in the first option, my outgoing server (SMTP) requires authentication.
  • Click Okay to save the configuration.

server requires authentication

After clicking OK, restart the perspective and check if the error [pii_email_37f47c404649338129d6] is removed, otherwise go to the next solution.

Method 3. Check Duplicate Account or Delete Duplicate Accounts.

Still haven’t got the solution? Let’s check the duplicate accounts. It may also be the reason for the error [pii_email_37f47c404649338129d6] and removing duplicate accounts may be the possible solution. Follow the options below

  • Click Menu from the point of view.
  • Open Account Settings from the menu and click on the Mail tab.
  • Check the duplicate account in the list and select one.
  • Click delete to delete a duplicate account, see the image below:

delete a duplicate account

After deleting the duplicate account, restart Outlook and check if you still see the Error Code [pii_email_37f47c404649338129d6]. So the problem is a little complicated. Let’s go to method 4 and see if we are lucky.

Method 4: Change the server port number.

  • Open panorama
  • Click on File and go to Account Settings
  • Click Email from account settings and select your email account from the list.
  • A new email account window will be open.
  • Go further settings and click on Internet Email Settings.
  • Click on the Advanced tab
  • Now change the (SMPT) port number from 465 to 587
  • Click OK to save the changes, see the image below.

save the changes

  • Outlook configuration smtp port number

After completing the setup, restart Outlook and pray that Error [pii_email_37f47c404649338129d6] is removed if you are lucky, the problem is resolved if we don’t have method 5.

Method 5. Check the antivirus software in your window.

In this method, here is a simple solution to fix the error. Disable antivirus for a while, you can prevent Microsoft Outlook from establishing a connection from the email client.

Disable antivirus as following steps:

  • Select Start
  • Configurations
  • Update and security
  • Windows security
  • Protection against viruses and threats
  • Manage settings (or virus and threat protection settings in earlier versions of Windows 10).

Each antivirus has different settings to disable it. Check according to the software you use.

If the error [pii_email_37f47c404649338129d6] still resists, go to method 6.

[Read more: How to Solve the [pii_email_9adeb2eb81f173c673a5] Error Code?]

Method 6: Uninstall Outlook and reinstall

So you’re in method six and it’s because the previous five methods didn’t work. Now the final solution for the error [pii_email_37f47c404649338129d6] is to uninstall Outlook and reinstall again. After installing again try adding a new account.

  • Uninstall Microsoft Outlook with the following steps:
  • Open Program and features from the control panel.
  • Search Microsoft Office 365 (Outlook is part of Microsoft Office 365)
  • Double-click Microsoft Office 365.
  • Follow the on-screen instructions to complete the uninstallation.
  • After completing the uninstall, reinstall Microsoft Outlook.
  • Create a new account, add it to Outlook and try sending the email again.

Method 7: Use the auto repair tool

  • On your laptop or computer, go to the control panel.
  • Display all of the programs and attributes on your computer’s screen.
  • Microsoft Outlook detected this listing in the applications.
  • Select all of the options to address the errors and determine how to correct them.
  • As a result, Windows will operate on the computer, and the repair system will automatically and without effort correct all of the problems with the application.

You must restart your Windows PC and launch Microsoft Outlook after successfully signing in to the software. After that, you’ll be able to send emails to the addressee quickly. If the issue code [pii email 37f47c404649338129d6] persists, try another outlook error code repairing strategy.

Method 8: Examine Your Microsoft Outlook Options

  • Now is the time to open Microsoft Outlook.
  • Open the Tools menu and select Accounts from the drop-down menu.
  • If you have multiple Outlook accounts, click the one that displays the problem code and then Properties.
  • By testing its ID, you may see if it’s connected to an email server.
  • Select the Outgoing Server tab from the More Settings menu, and make sure that Outgoing Server Authentication is enabled.
  • Make that the SMTP and POP settings in the Advanced tab are the same as the email hosting provider.
  • By selecting the OK button, you can save your account settings.


In this article we discuss different solutions for the error [pii_email_37f47c404649338129d6]. I hope one of them has worked for you and the bug has been fixed now, otherwise please comment below, we will find the possible solution for you.

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