I added the free SSL cert a few weeks ago. Seemed to work fine, but then I spotted that if I click on the website link from email, it starts to open the page and then gives a “certificate error https://mywebsite…” and 'This Site is Not Secure."
If I just load the site in the (same) browser the certificate is valid,
The “invalid” certificate has a different issuer and valid dates - sni.dreamhost.com, valid until 2025 as opposed to the “valid” certificate issuer is Lets Encrypt Authority and only valid until October this year.
Thanks and regards