Possible issue emqx and letsencrypt CA

[felipengeletrica]

Greetings, I'm having problems using letsencrypt with emqx because it changed the format of the signatures (CA). Do you have any documentation to indicate?

CA X3 Expiration
https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/

File: /en/201809/using-lets-encrypt-certificates-in-emq.md

[zmstone]

Hi @felipengeletrica
Sorry, this issue had fallen between the chairs.
Did the issue persist ?
If not, I'll need to know more information:

• which EMQ X version
• which MQTT client?
• were there any logs from the client side?
• have you tried using openss s_client command to test the listener ?