I received the email below. I lists my domain names.
But I don't think the email is correct. F.e. one of the domain names is liefseva.nl. When I check the certificate myself, then I see that it does not expire tomorrow (see screenshot below).
So what is wrong? I never received these emails from let's encrypt before.
Your certificate (or certificates) for the names listed below will expire in 0 days (on 24 Nov 21 05:43 +0000). Please make sure to renew your certificate before then, or visitors to your web site will encounter errors.
We recommend renewing certificates automatically when they have a third of their total lifetime left. For Let's Encrypt's current 90-day certificates, that means renewing 30 days before expiration. See Integration Guide - Let's Encrypt for details.