This article describes the Outlook Error Code 0x8004210B. It is Microsoft Outlook Error. This Error restricts your ability to send/receive emails on your Outlook email address successfully. This error is quite common and is faced with many Microsoft Outlook users.

Outlook Error Code 0x8004210B in Windows 10/11 (livesupportonlinechat.com)

0x8004210B

Causes of Outlook Error Ox8004210B:

  • Incorrect Outlook Configuration setting
  • PST files get corrupt
  • PST file crosses its fixed file size limit
  • Failure of POP3 and Protocol STMP in the database server connection
  • Improper synchronization between Outlook and the server
  • Usage of invalid password or username
  • Virus Infection

Symptoms of Outlook Error Ox8004210B :

  • “Error Ox8004210B ” appears and crashes the active program window.
  • Your PC frequently crashes with Error Ox8004210B when running the same program.
  • “Microsoft Outlook Error Ox8004210B ” is displayed.
  • Windows runs sluggishly and responds slowly to mouse or keyboard input.
  • Your computer periodically “freezes” for a few seconds at a time.

Solutions for Error Ox8004210B of Microsoft Outlook:

To fix the troubleshoot Outlook error Ox8004210B is the following three methods and explain them briefly.

Method 1: Fix System Integrity Issues

  • open Run Window and enter the Outlook/safe then click Ok then start Outlook in Safe Mode.
  • After that Open the Run Window and enter the cmd then click OK.
  • When the Command Prompt window opens, type SFC /scan now command and hit Enter.

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