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How is [pii_email_37f47c404649338129d6] Error Code Solved
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How is [pii_email_37f47c404649338129d6] Error Code Solved

What is the [pii_email_37f47c404649338129d6] Error, and why Does it Occur?


The error code: [pii_email_37f47c404649338129d6] is a conflict with the SMTP server and occurs due to incorrect settings for the software settings. You need to check that all parameters entered with port numbers, authentications, and secure connections are correct.

How do I Fix the Error Code: [pii_email_37f47c404649338129d6]?


There are many solutions to fix this error. However, we will discuss the 6 easiest and most practical methods to fix this error right away.

Before starting the solution, please check your account settings as follows:

Click the Tools menu, select an account that is causing the problem, and click Properties.

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


Outgoing mail server

If the server requires authentication, select the check box under My server requires authentication.


Server requires authentication

Click on More Settings

Make sure the SMTP port number matches the one provided by your FAE.

If the connection needs to be secure, select the check box. A secure SSL connection required for this server. Like the picture below:


secure SSL connection

My server needs a secure connection

Six Easier Ways to Fix the Error [pii_email_37f47c404649338129d6]

Microsoft Outlook error [pii_email_37f47c404649338129d6] occurs in Windows 10 and indicates the problem with Outlook Express or Windows Mail. This error usually occurs because of a conflict between SMTP servers when a user tries to send an e-mail without proper account settings.

This guide classifies 6 easy methods to resolve the [pii_email_37f47c404649338129d6] error that may help you.

Method 1: Repair from Programs and Features Tab.

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

Click the Windows button and look for Programs and Features (you can also open Control Panel and go to Programs and Features).

Under Programs and Features, look for Microsoft Office 365 (or select a suitable office application)

At the starting of the Programs and Features window, click Edit, choose Repair, and then follow the on-screen instructions.

When it finishes processing, restart Outlook and see if the error code clears. If it persists, try a method

Method 2. Check the Server Requirements Settings as follows:

Open application landscape.

Open document.

Account settings.

In the Account Settings window, click E-mail tab. The following window is displayed:


Account settings

Select your e-mail account from the list.

Click the e-mail account, then click More Settings.

Now open Internet e-mail settings.

Open the Outgoing Server tab.

Activate the first option. My outgoing server (SMTP) requires authentication.

Click OK to save your settings.


Server requires authentication

After clicking OK, restart the perspective and check if the [pii_email_37f47c404649338129d6] error resolved. Otherwise, move on to the next solution.

Method 3. Check the Duplicate Account or Remove Duplicate Accounts.

Still don’t have a solution? Let’s check the duplicate accounts. This can also be why the [pii_email_37f47c404649338129d6] error and removing duplicate accounts can be the possible solution. Follow the options below

From the view, click on Menu.

Open the Account Settings menu and click the E-mail tab.

Check the duplicate account in the list and select one.

Click Delete to delete a duplicate account. See the picture below:


Remove a duplicate account

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

Method 4: Change the Server Port Number.

Open panorama

Click on File and go to Account Settings

In Account Settings, click E-mail and select your e-mail account from the list.

A new e-mail account window will open.

Go to More Settings and click Internet E-mail Settings.

Click the Advanced tab

Now change the (SMPT) port number from 465 to 587

Click OK to save all the changes, as shown below.


Save the changes

SMTP port number for the Outlook configuration

After the setup finishes, restart Outlook and pray that the [pii_email_37f47c404649338129d6] error will remove if you are lucky. The problem is fixed if we don’t have method 5.

Method 5. Check the Antivirus Software in your Window.

Here is a short and simple solution to fix the error with this method. Turning off antivirus for a while can prevent Microsoft Outlook from connecting through its e-mail client.

Disable antivirus as follows

Choose Start


Update and security

Windows security

Protection against viruses and threats

Manage settings (or virus and threat protection settings in previous Windows 10).

Each antivirus program has different settings to disable it. Check according to the software you are using.

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

Method 6: Uninstall and then Reinstall Outlook

You’re in method six because the previous five methods didn’t work. The final solution to the [pii_email_37f47c404649338129d6] error is to uninstall and then reinstall Outlook. After reinstalling, try adding a new account.

Uninstall Microsoft Outlook using the following steps:

Open the program and functions from the control panel.

Search Microsoft Office 365 (Outlook is part of Microsoft Office 365)

Double-click Microsoft Office 365.

Follow the instructions (rules) on the screen to complete the uninstallation.

After the uninstallation is complete, reinstall Microsoft Outlook.

Create a new account, add it in Outlook and try sending the e-mail again.


This article explains 6 solutions to the [pii_email_37f47c404649338129d6] error. I hope one of them worked for you, and the error has now fixed. Otherwise, please comment below in the comment section, we will find the possible solution for you.

Also Read: How to Solve [pii_email_ed091850a13867385bea] Error Code?

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