How to Tips

How To Fix Outlook [Pii_email_37f47c404649338129d6] Error?


Microsoft Outlook is the most used worldwide email service provider can be used on various types of devices. It is an excellent source for scheduling meetings, appointments, sending and receiving emails.

Although it is more valuable, it doesn’t mean it won’t give any error. Many users complain that while sending the Microsoft Outlook Express mail, they face an error message

Neglected to interface with the worker. Attachment Error 10051 Error Number: [pii_email_37f47c404649338129d6].

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With this error sending and receiving mail is entirely irritating. You face this error on your PC or any other device when using an out-of-date Outlook, or it can be a problem with your cache or cookies.

[pii_email_37f47c404649338129d6] error occur If you have an SMTP conflict due to the faulty set software preference, the incorrect parameters for authentications, bugs, port numbers not activated Windows 10 license properly, or duplicate accounts.

Let’s find out how to fix it [pii_email_37f47c404649338129d6] error: Here are simple and easy four ways to fix the error, try these fixes and fix the error.

Remove Duplicate Outlook Account

If you use more than one Microsoft Outlook email account, you can face this Pii Email 37f47c404649338129d6 error. Follow the steps to resolve the error.

  • Open the Microsoft Outlook
  • Tap on the File
  • Open Settings and tap on the email tab
  • Check if there is a duplicate account in the list
  • If yes, then tap on one need to delete
  • Now restart the Outlook and see the Pii Email 37f47c404649338129d6 error fixed.

Use Any Windows Auto-Repair Software

An auto repair tool on the window will automatically diagnose the problems and fix them. You can do this by following the steps:

  • Move to Start menu
  • Type here Control Panel and hit Enter
  • Hit the Programs and Features on the right-hand side
  • All installed apps will be shown on your PC
  • Right-click on Microsoft Outlook app in this list
  • Hit on the Repair option
  • The tool will fix the existing issues.
  • Restart Outlook and check if the error is fixed.

Use Server Requirement Setting

Here you also need to use server requirement settings to resolve the error. You can do it in the following steps:

  • Open Outlook on PC
  • Tap on File
  • Open Account Settings, then tap the email tab you can see in the window
  • Select the main Outlook account
  • Hit More and open the Internet Mail Setting section
  • Go to General
  • Hit on Outgoing Server (STMP), and it asks to require authentication
  • Hit OK, then see if the error is fixed.

Change The Server Port Number

  • Open Outlook
  • Hit File, then open the Account Settings
  • Hit email section then hit on the mail account
  • A new window will open
  • Here select the Advanced tab
  • Change the SMPT port number
  • Hit OK, then restart Outlook and see if the error is fixed.

Finally: Although this error is annoying, the mentioned fixes above hopefully help you out.


Tabbasum is the internet marketing manager at BestKodiTips. She works as a freelance and ghost writer for various businesses across the globe.

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