Hello,
I don’t know for emqtt as I’ve not used it at all.
However, I see that there is a ssl_opts that you should use to give ssl indications to the underlying connection.
Here is a set of options I’m using to connect to amqps (param is ssl_options in amqp library), It is erlang ssl_options under the hood so this should give you a starting point.
...
ssl_options: [
versions: [:"tlsv1.3"],
verify: :verify_peer,
cacerts: :public_key.cacerts_get(),
depth: 2,
customize_hostname_check: [
match_fun: :public_key.pkix_verify_hostname_match_fun(:https)
]
]
...
Cheers,
Sébastien.
