Facing Outlook Certificate Error? 3 Solutions to Get It Fixed!

The Outlook certificate helps keep the email secure. Essentially, it's a digital certificate for signing into an email so that the receiver can be assured that the upcoming mail is from a known and valid person. However, people also report facing the Outlook certificate error. They complain of receiving popup of Outlook certificates repeatedly. You must know how to resolve this issue. Otherwise, it will become a source of major inconvenience. In this article, you'll understand the various causes and fixes for the certificate error.

 

Why does Outlook Certificate Error Arise?

There are majorly four reasons for this error. They include the following.
  • A wrong certificate is a significant reason for this error.
  • Incorrect date and time settings on your machine can also result in a certificate error. If the system's date goes beyond the expiry date of the certificate, this issue will inevitably come up.
  • Change of the domain of the internet service provider. If your ISP changes the certification, you must also update the Outlook certification.
  • Inputting incorrect hostname during the new mail setting.

 

Tips to Fix the Outlook Certificate Error

There are three proven methods to get rid of the certificate popup error. Use them, and you'll no longer face this error.

Confirm the Certificate Name

Whenever you face this problem, one of the first things you can do is see the mail server's name and the certificate. It's because it's essential to have the certificate and the mail server's name for creating a good connection. Follow these steps to confirm them.
  • When you see the Outlook certificate popup, tap 'View Certificate.'
  • Next, choose the option of 'Issue to Name' and check whether the certificate's name and the mail server's name are identical or not.
  • After checking this, change the name and start the Outlook program again.

Change the SMTP (Outgoing Port)

At times, the ISP blocks some outgoing SMTP ports. It leads to the users experiencing the certification error. You need to change the block port to another port to resolve it. Follow the steps below for doing it.
  • Launch the Outlook email program on your device.
  • Tap the option of 'File' and choose the 'Info' option.
  • Next, tap on 'Account Setting.'
  • Now, again choose the 'Account Setting' option.
  • Choose the email account and hit 'Change.'
  • Tap 'More Settings' and go to the 'Advance' tab.
  • Modify the SMTP port and tap 'OK' to apply the changes.

Utilize the Insecure Port

Note that using the insecure port makes you vulnerable to data theft. But they have their own security criteria. Examples of unsecured ports are IMAP 143, POP 110, and SMTP 587. Various organizations block certain mail servers like IMAP 993, SMTP 465, and POP 995 because of security concerns. But if you wish to resolve this error, you must change to non-SLL POP.

 

Final Words

These were some of the major fixes for the Outlook certification error. They are certainly going to solve this problem for you. But if the problem persists, contact expert Outlook customer services. They are there to help you troubleshoot all technical glitches so that you can work efficiently.

 

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