Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: remindo.net
I ran this command:
It produced this output:
My web server is (include version): IIS 10
The operating system my web server runs on is (include version): Windows Server 2019 Standard
My hosting provider, if applicable, is: nfoservers.com
I can login to a root shell on my machine (yes or no, or I don't know): yes
I'm using a control panel to manage my site (no, or provide the name and version of the control panel): No
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you're using Certbot): Using WinACME - should be latest version - downloaded only days ago
I have a .Net Core MVC application where emails are used to send reports to clients, etc. The client is using Outlook.com to host their email. I've created a test site on a different server than the production site and I'm using remindo.net as the domain (I needed one to get the certificate and I had this one unused, so I'm borrowing it for the testing). When the site attempts to send email, an error is generated that says "An error occurred while attempting to establish an SSL or TLS connection. The server's SSL certificate could not be validated for the following reasons: The server certificate has the following errors: The revocation function was unable to check revocation for the certificate." The site is showing as secure. I've installed OCSP Stapling, though I'm not 100% sure that is working properly. I'm at a loss here as to what's going on and this is an area I'm unfamiliar with, so whatever answers are provided, please be detailed.
Here are the results of some commands I've run (I've removed ETag, because I really don't know if that's something that's ok to show publicly).
C:\Windows\system32>curl -I http://x1.c.lencr.org
HTTP/1.1 200 OK
Last-Modified: Fri, 04 Aug 2023 20:57:55 GMT
Expires: Mon, 09 Oct 2023 00:01:45 GMT
Date: Sun, 08 Oct 2023 23:01:45 GMT
C:\Windows\system32>curl -I http://r3.o.lencr.org
HTTP/1.1 200 OK
Expires: Mon, 09 Oct 2023 04:38:19 GMT
Date: Sun, 08 Oct 2023 23:02:09 GMT
C:\Windows\system32>curl -v https://acme-v02.api.letsencrypt.org
- Trying 18.104.22.168:443...
- Connected to acme-v02.api.letsencrypt.org (22.214.171.124) port 443 (#0)
- schannel: disabled automatic use of client certificate
- ALPN: offers http/1.1
- schannel: next InitializeSecurityContext failed: Unknown error (0x80092012) - The revocation function was unable to check revocation for the certificate.
- Closing connection 0
curl: (35) schannel: next InitializeSecurityContext failed: Unknown error (0x80092012) - The revocation function was unable to check revocation for the certificate.
Any help would be appreciated.