My domain is: bhooks.com
I ran this command: normal install, ssl checks locally.
It produced this output: Both worked
My web server is (include version): nginx version: nginx/1.14.0 (Ubuntu)
The operating system my web server runs on is (include version): Ubuntu 18
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): 0.31.0
So the install of the Let’sEncrypt certificate worked perfectly fine, my website is on https, ssl checks on the host are fine. My problem is that the gmail connection doesn’t work.
I have a postfix + dovecot installation, both use the fullchain + key pem-files. Connecting to them via my outlook.live account works (e.g. via IMAPS 993, but also POP3 is available). But Gmail responds with:
Server returned error: "SSL error: ok IP address "126.96.36.199" not found in SANs"
Or, when I try to use port 143 with the checkbox ticked for “Always use a secure connection (SSL) when retrieving mail.”, I get the error:
Server returned error: "SSL protocol error. Please try disabling SSL, or contact your other provider to verify the correct port settings."
(And, as said, both sending and receiving mails in my outlook.live account (using 143) for the same email works perfectly fine)
What more could I check for?
Thank you for some guidance!