Question Plesk: LetsEncrypt renewals sporadically failing/skipped

[Paul Larson]

Server operating system version

Ubuntu 22.04.5 LTS

Plesk version and microupdate number

Plesk Obsidian 18.0.71.1

I don't have specifics, but I do seem to have domains fail, causing an alert, because their SSLs are expired. All are on Plesk servers. My issue is identical to this 2024 thread:

Issue - LetsEncrypt certificates no longer automatically renewing, even though Plesk says they should

I am having issues with LetsEncrypt that used to automatically renew just fine, but recently stopped automatically renewing even though Plesk says that auto renewal is turned on for the domain, it doesn't renew. Does anyone have any clue what could be wrong, or how I can figure out what could be...

talk.plesk.com

Just wanted to see if anyone else experiencing this.

Picking today's domain, for example, I don't see any email alert of an issue. I'm accustomed to emails like this:

Subject: Could not issue/renew Let`s Encrypt certificates for ...
Body:

Invalid response from https://acme-v02.api.letsencrypt.org/acme/[redacted]
Details:
Type: urn:ietf:params:acme:error:unauthorized
Status: 403
Detail: 67.205.170.6: Invalid response from https://example.com/.well-known/acme-challenge/[redacted]: 404

** 'Lets Encrypt example.com' [already expired] **
[-] example.com
[-] www.example.com

I'll be honest - I don't always pay attention to these emails because I get so many of them, and sometimes the failures are 'correct', and no site is down.

But, the domain that failed today has no accompanying email alert.