MS outlook is the best among the other documents which are used by windows users. Using a POP3 attaching to Outlook express, you need to modify the setting of Microsoft exchange server. It is general to have an error code on the server. The error message may be different from PC to PC.

Call Outlook Support Phone Number +1 (877) 363-0097

Outlook error 421 appears while receiving and sending mails. In this condition,Users generally failed to open their emails, journals, and contacts etc. While opening and closing the Outlook, if you get any error message which stops you to open your emails, then some reasons behind it can be:

  • Inappropriate shutdown of Computer system
  • Bad internet connection
  • Improper setting of ISP
  • When PST file crosses the 2GB size
  • Improper settings of firewall
  • Virus attack or Trojan attack

Steps to Resolve Microsoft Outlook Error 421

Some of the steps to resolve Microsoft outlook error 421 are mentioned below. Have a look on these steps and resolve the issue.

Step 1:  Repair the registry entries which are linked to Outlook error 421

Step 2: Scan your Computer system completely.

Step 3: Clean out all the junk or virus from your system with the help of disk cleanup.

Step 4: Now, update your computer device drivers

Step 5: Next step is to utilize the windows machine to undo all the latest system changes

Step 6: Then, uninstall and reinstall the Microsoft outlook program which is connected with error code 421.

Step 7: Run windows system file checker

Step 8: Install all the windows update which are available

Step 9: Perform an installation of windows

Get in touch with our Microsoft outlook support phone number

Still, if you are unable to resolve this issue, then call our technical experts on Microsoft outlook phone number. You will get answers to your all the issues. The experts will provide you 100% satisfaction by their service. They are open 24*7 for the best service.