How to fixed the [pii_email_37f47c404649338129d6] Error ?

You may face this [pii_email_37f47c404649338129d6] error when sending an email from your Outlook account. Microsoft Outlook is one of the most popular and reliable email services with millions of users worldwide. The Outlook service is used mainly only to send and receive emails from many specific sites that you might be linked to. Yet they do have glitches and issues. While they are not frequent, you might have experienced an error if you are an outlook user.

This is a Microsoft Personal Data Manager that fits with the Microsoft office suite.

Besides this, you might also use Microsoft Outlook help to manage your personal information. Among the most common errors faced by many users of Outlook Express is [pii_email_37f47c404649338129d6], chances are, you would have faced this problem too.

Alright, now we’re going to learn further about this error in the following section, and some of the easy method to fix it in your own Outlook account. Therefore lets go ahead without wasting time.

What is error [pii_email_37f47c404649338129d6]

Error no: [pii_email_37f47c404649338129d6] is due to conflict with the SMTP server, which is due to bad software preferences configuration. You will double-check if all the parameters entered are correct for your port numbers, authentication, and secure connections. This error does not require you to send any emails to other accounts. You can accept emails only and view the mail in the inbox You can find the answer in the methods below.

Methods to fix [pii_email_37f47c404649338129d6]

There are multiple options for error like [pii_email_37f47c404649338129d6], and most of the time the issue is resolved in a few seconds. Here listed all the ways you could try on your PC to be able to resolve this error in your Microsoft Outlook. But before going to start make sure you have to take backup files.

Method 1: Fix Using Auto Repair Tool On Windows

This is an automatic repair tool in your Windows that can diagnose an app. It can be fixed the issues if present in Outlook. Using this method, restoring the Outlook software on your computer is easy.

Step 1: Control panel which is open.

Stage 2: Pick Attributes and Programmes.

Stage 3: The list locates Microsoft Outlook in the programs.

Step 4: Select the option to edit, and pick repair.

Stage 5: A window will run via the wizard and fix tool will fix all problems within the program automatically, that’s it.

After the successful running of the application, restart the PC, and launch Microsoft Outlook. You will now be able to send out emails. If the error [pii_email_37f47c404649338129d6] still exists, you can use the following method.

Read More: How to Fix [pii_email_e6685ca0de00abf1e4d5] Error

Method 2. Check server requirement setting

Step 1: Open Microsoft outlook.

Step 2: Go to Tools menu and click on accounts.

Step 3: Select the account that is causing the error and click on properties.

Step 4: Check id to determine whether it is set as per email server.

Step 5: Click on more settings, select the outgoing server tab, and check whether outgoing server authentication is enabled.

Step 6: Go to the advanced tab and check whether the SMTP & POP settings match with your email hosting provider.

Step 7: Click ok to save the settings.

Now restart the outlook after clicking on Ok and check whether the [pii_email_37f47c404649338129d6] error is removed.

Method 3. Check duplicate account or Delete Dublicate account

Still didn’t get the answer? Let’s check the accounts in duplicate. It could also be the explanation for error [pii email 37f47c404649338129d6], and it may even be possible to remove duplicate accounts. Follow the options below.

Step 1: Click on the Outlook Menu.

Step 2: Open the account settings from the menu, then click on the mailing tab.

Step 3: Check the duplicate account within the list and pick one.

Step 4: To get rid of one duplicate account press Delete.

After the duplicate accounts have been deleted, restart outlook and try sending emails.

Method 4. Change server port number

Step 1: Open Microsoft outlook

Step 2: Go to file and account settings.

Step 3: Click on email form the account setting and select your email account.

Step 4: In the email window click on more settings and click on internet email settings

Step 5: After change the SMTP port number from 465 to 587.

Step 6: Click OK to save the settings.

Method 5. Disable antivirus

Here’s a easy solution to fix the error in this method. Disable antivirus for a while which can prevent Microsoft Outlook from establishing an email client connection.

Step 1: Open or click start control panel and go to settings.

Step 2: Go to the Update & security

Step 3: Choose Security in Windows

Step 4: Choose Virus & Threat Protection at Windows Security

Step 5: Click Manage Settings in Virus & Threat protection settings.

Step 6: Disable Security in real time

Start Microsoft outlook now, and try to send an email. If you see the error still try the next step. Must not forget to again allow the enable virus & threat protection. If the [pii_email_37f47c404649338129d6] error is still immune, then move to method 6.

Method 6. Reinstall Microsoft outlook

If above 5 methods not working then you are on Step six. Now the final workaround for the [pii email 37f47c404649338129d6] error is to uninstall and reinstall the outlook again. Try adding a new account after reinstalling.

Step 1: Open the Control Panel and select Program and Features.

Step 2:  Now Search For Microsoft Office 365

Step 3: Then Double click on Microsoft office 365.

Step 4: Follow the instruction on the screen to complete uninstall program,.

Step 5: After completing the process of uninstallation next to install Microsoft outlook again.

Step 6: After Create a new account, add it in outlook, and try sending the email again.


In this article we discussed 6 methods for the [pii_email_37f47c404649338129d6] error. we hope above all methods will work for you and error is fixed now.

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