using-lets-encrypt-certificates-with-mosquitto.md suggests using an expired cacert

[mattst88]

DST Root CA X3 (/etc/ssl/certs/DST_Root_CA_X3.pem) expired in September 2021. See [1], which says ISRG Root X1 (/etc/ssl/certs/ISRG_Root_X1.pem) should be used now.

[1] https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/

[ralight]

Thank you, that's an old post but having out of date information is no use for anyone.

[mattst88]

Thank you!