Microsoft Windows Mailing Services called Outlook are used by approximately 500 million users. Users of often face errors containing pii email like [pii_email_3dd76af4bcadd8ded428], [pii_email_e7ab94772079efbbcb25], [pii_email_0048997cdc300383cb33], while sending or receiving mails through outlook. Users look for solutions to problems and have difficulty finding the right way.

Here in this piece of content we will show you top 7 Best Methods To Fix [pii_email_3dd76af4bcadd8ded428] Error and other common Outlook errors containing pii_email in Microsoft outlook.

What is Microsoft Outlook?

Outlook is Microsoft’s email application for “office”.

Outlook is convenient because it allows you set up multiple accounts. It also allows you to use corporate mailboxes. The application offers all the settings you need, including privacy adjustments and automatic mailings.

Outlook requires you to create an account before you can use it. Follow the instructions in Outlook. A user-friendly interface with tips and tricks will make it easy for beginners.

Why Does [Pii_email_3dd76af4bcadd8ded428] Error Code Occurs In Outlook?

[pii_email_3dd76af4bcadd8ded428] error and [pii_email_e7ab94772079efbbcb25], [pii_email_0048997cdc300383cb33], errors in Microsoft Outlook occurs due to many reasons. We will tell you the most important reasons.

  • This problem is mainly caused by caching.
  • Application functionality is affected if multiple accounts are used or login to them.
  • Use an outdated version, or a newer version with only half or very little updates.
  • Error [pii_email_3dd76af4bcadd8ded428] occurs due to STMP Server. SMTP server accounts are used to send mailing lists. Its activities usually consist of two major purposes:
  • Confirming that all settings are correct, and giving permission for the computer to send the email
  • Sending an outgoing email to the address. Confirming that the message was successfully sent. The machine will send a reply to the sender if delivery is not possible.

7 Best Methods To Fix [Pii_email_3dd76af4bcadd8ded428] Error

  1. Reinstalling Microsoft Outlook
  2. Clearing Microsoft Cache
  3. Microsoft Outlook Update
  4. Change the Server Port Number
  5. Use the Web Version of Microsoft Application
  6. Downgrade MS Office Version
  7. Contact Customer Support

Reinstalling Microsoft Outlook

This is the first method most developers use to fix MS error. You can fix [pii_email_3dd76af4bcadd8ded428] error or [pii_email_e7ab94772079efbbcb25], [pii_email_0048997cdc300383cb33], errors by reinstalling Microsoft Outlook Application.

  • Open Control Panel from the desktop search bar.
  • Click on Programs & Features.
  • Click on the Microsoft Office error or any other program to find it.
  • Click on the Uninstall button
  • After the installation is completed, restart your computer.
  • Reinstall Outlook now.

Clearing Microsoft Cache

By clearing Microsoft outlook cache and cookies the previous saved data which is causing conflict or problem will removed and new caches start creating which will resolve the [pii_email_3dd76af4bcadd8ded428] error.

These are the steps to clearing caches

  • Use the Window Search bar
  • Type Run
  • The Run dialogue box is now open
  • Write the %localappdata%\Microsoft\Outlook and press enter.
  • Double-click the RoamCache directory to open it.
  • These caches can be saved to your computer by copying them to another location.
  • Holding Shift key to select all files.
  • Next, press .
  • Dialog box will open to conformation Press Yes.

After this process, If Microsoft outlook need update, then allow it to update and restart the PC and see if the error [pii_email_3dd76af4bcadd8ded428] is solved.

Microsoft Outlook Update

You must verify your system requirements before installing a new update to Microsoft Office outlook.

  • Most importantly, the old version is automatically deleted when you install a new Microsoft Office version.
  • If you have any concerns about an error in the update, you can uninstall it and then download a new version.

These steps will allow you to keep your profile up-to-date.

  • Click on File to open MS Outlook.
  • Click on OfficeAccount in the navigation bar.
  • Click on Update Option
  • Click Update.
  • You can also choose the On Auto Update option

Change Server Port Number: Best Fix For Pii_email_3dd76af4bcadd8ded428

To change server port for Microsoft Outlook to resolving pii email error or [pii_email_3dd76af4bcadd8ded428] follow the steps:

  • Microsoft Outlook Office
  • Click on Tools, then Accounts
  • For a complete list of your mail accounts, go to the Mail tab
  • Select the mail account that is causing the problem.
  • Click on the Advanced tab
  • Change “Outgoing mail(SMTP)” to ### from 25
  • Click OK to Close

Now you will be able to send mails and the issue [pii_email_3dd76af4bcadd8ded428], [pii_email_e7ab94772079efbbcb25], [pii_email_0048997cdc300383cb33], may be resolved.

Use the Web Version of Microsoft Application

Microsoft Outlook Web Version has minimal issues

  • Open your web browser, type into the address bar, and hit enter.
  • Click on the login button to proceed.
  • Register with your email address and password to access your account.
  • Sign in
  • You can also create a new account.

Downgrade the MS Office Version

If nothing work from above methods for fixing [pii_email_3dd76af4bcadd8ded428] error. Because of compatibility issues between Microsoft Office and operating systems, the last office downgrades Microsoft Office. Sometimes, all updates are not released at once which can cause problems with compatibility of programs. To resolve problems, you can either install older versions or uninstall an installed update.

Contact Customer Support

If you have tried all of the above and still aren’t getting the error, the last thing is to contact MS office customer support and ask for a solution.


We have shared above Best Methods To Fix [pii_email_3dd76af4bcadd8ded428] Error/ [pii_email_e7ab94772079efbbcb25], [pii_email_0048997cdc300383cb33], pii email errors. Below is a list of all codes that contain pii_email. All of the above methods can be used to fix any error containing any code.

By Manali