Windows 10: security certificate not verified.

I use outlook for my emails. When I send the first email of the day a dialogue box appears stating that the server I am connected to is using a security certificate that cannot be verified. It states the target principal name is incorrect. Is this a problem with my system security or should I ignore it?

If I have to how do I correct it?


TJM

:)

 

security certificate

Hi,

Thank you for posting your query on Microsoft Community.

I would like to know if this issue occur on Different Web browsers too?

I would suggest you to try the following steps, when you access secured website you may get this error message.

1. Open Internet Explorer and verify that the page you are trying to view is listing a certificate error.

2. To clear the certificate error goes to Tools --> Internet Options from the menu of IE 11.

3. Click on the advanced tab and scroll down to the security section. Clear the boxes for: "Check for publisher's certificate revocation" and "Check for server certificate revocation".

4. Click Apply and Ok.

5. Attempt to reload the page by clicking the Refresh button at the end of the address bar or by pressing the F5 key. Your page should now load as expected.

This error can be cause by the SSL certificate of the website – maybe it was not issued by a trusted Certification Authority on the client side. It could even be an attempt to fool you or intercept data you send to the server. Or maybe the certificate has
expired.

I suggest you to refer to the Microsoft help article and check if it helps.

https://support.microsoft.com/en-us/kb/931850

I would suggest you to refer the link below and check if it helps:

Certificate errors: FAQ

Certificate errors: FAQ

Hope this information was helpful and do let us know if you need further assistance. We will be glad to assist.

 

SECURITY CERTIFICATE

You may also try the following steps:

a) Open Internet Explorer and verify that the page you are trying to view is listing a certificate error.

b) To clear the certificate error click on ‘Tools’ then ‘Internet Options’ from the menu of Internet Explorer 11

c) Click on the ‘Advanced’ tab and scroll down to the security section. Clear the boxes for: “Check for publisher's certificate revocation" and "Check for server certificate revocation".

d) Click Apply and Ok.

e) Attempt to reload the page by clicking the Refresh button at the end of the address bar or by pressing the F5 key. Your page should now load as expected.



BUT SAME ISSUE

 

Message: There’s a problem with this website’s security certificate

Hi Patel,

I will be glad to help you with the issue you have with Internet Explorer.

Internet Explorer found a problem with a certificate that doesn't match any other errors. It could be because a certificate has been damaged, tampered with, written in an unknown format, or is unreadable. You shouldn't trust the identity of the site if a
certificate has this error.

I would suggest you to try the following steps, when you access secured website you may get this error message.

1. Open Internet Explorer and verify that the page you are trying to view is listing a certificate error.

2. To clear the certificate, click on the gear icon on the top right hand corner --> Internet Options from the menu of IE 11.

3. Click on the advanced tab and scroll down to the security section. Clear the boxes for: "Check for publisher's certificate revocation" and "Check for server certificate revocation".

4. Click Apply and Ok.

5. Attempt to reload the page by clicking the Refresh button at the end of the address bar or by pressing the F5 key. Your page should now load as expected.

About certificate errors:

http://windows.microsoft.com/en-US/windows-vista/About-certificate-errors


Thanks & Regards,

Hope this helps. Let us know the results.