Many people have [pii_email_19c55b6f8900a6843679] errors in Microsoft Outlook. These errors can be frustrating and can cause you to lose important email messages that you have received or sent daily. Don’t panic if you have an Office 365 Business account. This blog post will explain how to correct these errors and ensure that your email runs smoothly.

The Microsoft Outlook Error [pii_email_19c55b69e551a6843679] can be fixed easily if you follow this article step by step. Don’t panic and contact your technical support team! You only need to click one button to find the solution. So what are you waiting? Scroll down to learn how simple it is, and then apply.

What does [Pii_email_19c55b6f8900a6843679] error mean? And why do these types of errors occur

– If your account error code says 19c55b6f8900a6843679, then it means that there’s something wrong with how your Office 365 Business account password was applied to Exchange Online Protection (EOP).

– [pii_email_19c55b6f8900a6843679] is most often a result of having the wrong password for your email account. This could be due to forgetting your Office 365 Business password password or if you have recently had suspicious activity on your Account.

– This error may be caused by issues in Microsoft Exchange Online Protection (EOP), which handles outbound messages via SMTP.

What Happens When Outlook Error [Pii_email_19c55b6f8900a6843679] Occurs?

The main reason for the error is

Outlook doesn’t know that your account password has changed. This can also occur if an older email address was used with a different Office 365 user name when the passwords were changed.

Simple And Effective Ways To Fix [Pii_email_19c55b6f8900a6843679] Error

The Latest Version Of Microsoft Outlook

  • Download the latest version of Microsoft Outlook and install it.
  • Change to a new Office 365 password
  • For users whose email address is invalid, you can change it in the Mail Settings > Account Maintenance > E-mail Addresses section.

Microsoft Outlook Server Port Number

  • Click “Outlook Data Files” and go to File>Properties.
  • Click on “New Serer” to change the port number under the personal folder connection section. You can use different accounts for Exchange and Office 365.
  • These changes should be made in the appropriate sections. These adjustments are not applicable to other computers than the one you have created.

Delete duplicate accounts from Microsoft Outlook

  • Click on the Start button
  • Type “gpedit.MSC” in the search field.
  • Click here to go to Computer Configuration > Administrative templates > Windows Components > Outlook
  • Double-click on “Outlook” to prevent users from creating, changing or removing duplicate accounts.
  • Enabled and Apply Changes

Fix the Issue Via Control Panel

  • Double-click on “Control Panel”> System Security
  • Select Administrative Tools under System
  • Double-click on Microsoft Exchange Server service, then click Services. Next to Service Status, click on the window to change Startup Type to Automatic. Then, click Apply Changes.

Options (under menu bar) -> Junk E-mail Protection tab -> uncheck the box “Move junk email into a separate folder.”

Check out the Work Requisite Settings in Your Account

Options (under menu bar) -> Junk E-mail Protection tab -> click on the “Settings” button

Checking work requirements and fixing errors automatically.

Reinstall Microsoft Outlook Application On Your PC

Configure SMTP and POP Server Settings

  • to Reconfigure SMTP and POP Server Settings in your pc: – download [pii_email_19c55b69e551a6843679] error fixer utility from here
  • then execute the [pii_email_19c55b69e551a6843679] fixer utility on your machine
  • Type “” to sign up for Outgoing Mail Server. Next, type for Incoming Mail Server (under IMAP). -> Click on the OK button to save changes.
  • Install the software on Windows PCs where Microsoft Outlook has been installed. It is a 14-day trial version
  • Open this SMTP Server Repair Tool by double-clicking its executable File. Next, follow the instructions in the setup wizard.

Use SCANPST.Exe To Repair PST Documents In Microsoft Outlook

  • SCANPST.exe will remove all errors found in the PST file, and repair the mailbox database
  • This tool can be used on both MS Exchange Server and Non-Exchange Server environments

Important Tips: If you are having trouble accessing [pii_email_19c55b69d90a6843679], try these steps before contacting customer service or opening a support ticket on our website:

First, check for Windows updates. Then, update any software.

The bottom line of this blog post: [pii_email_19c55b69d90a6843679] errors are a common occurrence in Microsoft Outlook, so it’s essential to know how these errors come to exist, what they do and how you can fix them with simple and easy steps that no create any technical requirements.

By Manali