5 Ways to Solve the [pii_email_37f47c404649338129d6] error

by Marilyn Harris

Microsoft Outlook shows different types of error codes. These codes arise when you give a command to Outlook, but it is unable to operate. It is secure, it uses SSL and TLS security encryptions provided by Microsoft to send and receive your emails. 

assists people in communicating daily with email, scheduling meetings, and more. Many people rely on Outlook every day to prepare for meetings and to send and receive emails. Though it is popular, Outlook Express can sometimes give error messages nonetheless. Users may find a message telling them: “Error message: Despite being notified that he would be transferred, the employee failed to make it.

An out-of-date Excel spreadsheet, a cached cookie, or a corrupted Excel workbook can contribute to this error. There may be an SMTP error when your software preferences are wrongly set, your authentication and port numbers are incorrect, your accounts are duplicated, your Windows 10 permits are in the wrong position, etc.

Sometimes, when attempting to send an email from Microsoft Outlook Express, a user will get an error message saying: “Neglected to interface with the worker. Attachment Error 10051 Error Number: [pii_email_37f47c404649338129d6].”

When this happens, you won’t be able to send or receive an email. This error can occur when your Outlook is out of date, or if you have an issue with your cache or cookies.

You might see this error if you have an SMTP conflict due to incorrectly set software preferences, or the wrong parameters set for authentications, port numbers, bugs, duplicate accounts, or not activating Windows 10 license properly.

Why does the Error pii_email_37f47c404649338129d6 Occur in Outlook?

This trouble happens whilst a person attempts to hook up with the mail server thru SSL encryption, and the relationship does now no longer establish. Moreover, it can be viable that SSL encryption is disabled for the email account. There are styles of encryptions supplied through the SMTP servers for sending and receiving emails, i.e., SSL and TLS. If one encryption does now no longer join because of wrong settings, the noted blunders can seem.

When this mistake happens in Outlook, the subsequent signs and symptoms can without problems be seen:

  • The Windows OS begins to crash irregularly.
  • Applications prevent responding, and the tool wishes to restart.
  • The Mouse and Keyboard take too long to respond.

Basic techniques to fix error [pii email 37f47c404649338129d6]

There are a couple of alternatives for the error such as [pii_email_37f47c404649338129d6], and sometimes the problem of error resolves very quickly or within a few seconds. We have listed all approaches you should strive on your PC to be in a position to remove this error in your Microsoft outlook express. But earlier than going to begin to make positive to have returned the backup files on your PC. 

Solve the error by auto repair tool on windows

This is a computerised restore device in your windows that can check the app. It can automatically solve the error if present in Microsoft Outlook. With this technique, you can easily fix the outlook software program on your laptop easily.

  • First step: open the control panel in your PC or Laptop
  • Second step: pick up all the programs and attributes on the computer screen
  • Third step: the listing found Microsoft outlook in that programs
  • Fourth step: select all the alternatives to edit the error and pick out for repair.
  • Fifth step: a window run automatically in the computer and repair device will repair all roubles inside the software automatically without any difficulty,

After the profitable logging of the application, you have to restart the computer and open Microsoft outlook. After that, you will easily send emails to the receiver. If you still face the error [pii_email_37f47c404649338129d6] then you can use another following technique for fixation of error.

Open and check server requirement set in the computer

  • First step: to open the Microsoft Outlook software in the computer
  • Second step: next is go to the tools menu and click on outlook accounts on the computer screen
  • Third step: click the account that is inflicting the error problem and click on the properties section.
  • Fourth step: make sure identification to decide whether or not it is set according to the electronic mail server.
  • Fifth step: select extra settings, pick the outgoing server tab and test whether or not outgoing server authentication is enabled or disabled.
  • Sixth step: next click the advanced tab and take a look at whether or not the SMTP and POP setting suit your email web hosting provider.
  • Seventh step: select ok to save the settings after solving the computer.

After this, restart the Microsoft outlook app to make sure the error is solved or not.

  • Check all the duplicate account, select it and delete it from the PC

Just follow the below alternatives for this problem:

  • First step: open the outbox menu on the computer screen
  • Second step: click the settings of the accounts from the menu bar, and click on the mailing box.
  • Third step: select the duplicate account inside the listing and pick out one.
  • Fourth step: select the duplicate account and press the delete option to delete it.

After deleting all the duplicate accounts, open the Microsoft outlook software and attempt sending emails to the receiver.

You can change your server port number for fix this error

  • First step: click Microsoft outlook and open it.
  • Second step: move to files and account settings.
  • Third step: Move to the email from the settings and choose your electronic mail account.
  • Fourth step: after this, click on more settings to fix the error and also select internet email settings on the email window.
  • Fifth step: after the exchange the SMTP port number.
  • Sixth step: select the OK button to save this account setting.


Microsoft Outlook uses SSL and TLS security encryptions provided by Microsoft to send and receive your emails, as previously mentioned. No prior knowledge of SSL or TLS security encryption is required, but you should be aware that it is one of the most reliable methods of addressing the [pii email 37f47c404649338129d6] error.

SSL and TLS encryption is required for the mail server to be integrated with Outlook. When interacting, it is always preferable to verify all of the boundaries, such as the port number, validations, and secure association. 

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