Outlook Certificate error is one of the most common problems that is often faced by a number of users when the administrator uses self-published certificates.
This particular error is quite hard to understand as it defines the security certificate of your email server that has expired due to some reasons. In such cases, you need to install an updated certificate.
An error message constantly pop-ups on the screen and asks for some permission.
You become unable to hide the pop-up or turn off this option.
This error message means that the server does not match the name with the account settings that you are using.
In case, if the browser’s settings are not configured properly, then this issue might occur in your Outlook account.
If you are also the one who is facing the same problem, then follow this informative guide to the end.
Here we have discussed some effective methods that will be enough for you to get rid of the issue at the earliest possible. Hence, keep following the entire guide.
It is essential to know about the issue so that you can fix it on your own. In the previous section, we have mentioned some causes. Now, it’s time to explain the feasible solutions.
So let’s take a look at this section as well.
In order to get rid of Outlook Certificate error, first of all, you have to check all the certificates. For doing the same you need to contact the system administrator and get the administrative rights of the device.
After that, get a connection to any server that is safe and secure or to an RPC server within the Internet Explorer. Now, click on the Enter button on the keyboard.
Then, you need to navigate to the Padlock symbol. You will find this icon on the lower right-hand corner of the browser window. Next, choose that icon by double-tapping on it.
Soon, locate to the new window and click on the Details tab. After that, get the information from the respective fields shown on the display if your device. But remember that the information that is present in this field should be exactly the same as the name of that site itself.
Finally, restart Outlook and if needed then login with correct credentials and check if you are still getting the same error or not.
The first and foremost thing you have to do is to navigate to the Start menu and click on the dialog box. Now, type cmd in the box and launch a Command Prompt as well.
After that, you will have to type “ping mail.yourservername.com” for getting the IP address and the server name of the host.
In case, if you find that the server name in the ping results is the same on the certificate, then use it as the mail server name in your Outlook account.
But if the name is another, then you have to use it as the server name in the Outlook application.
If the first two methods are not workable for you to solve the Outlook Certificate error Office 365, then try to make a new DNS record and check if the problem gets fixed or not.
At first, you have to use the certificate that is on the certificate itself. This name is used by the CAS servers and reverse proxies. For both the external DNS, you have to use the same name as it is present in the certificate.
To solve the Internal IP of the CAS server, you have the internal DNS. To get rid of the public IP of the CAS servers, you require the external DNS.
In case, you use the reverse proxy, then you need to configure the external IP to change the public IP of that reverse proxy.
Hopefully, the mentioned methods will be enough for you to solve the Outlook Certificate error on your own.
In case, if you find any sort of difficulties, then share your doubts with us. Post your queries in the feedback box and let us know that.
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