I received a certificate expiry warning today from lets encrypt.
I think it is great that lets encrypt is offering not only a free signing service but also warnings before the certificate expires.
Unfortunately I received the email on the same day the certificate is going to expire (The warning literally said 0 days) I checked and no previous e-mails were sent. So by the time I saw the e-mail the certificate was already expired. And since I had to solve some issues which caused the
certbot to crash on my server it was a very stressing start for the weekend.
I’m not sure if this is a known issue and where it should be reported.