[erlang-questions] SSL: "unknown ca"

[PAILLEAU Eric]

>
> trusted by WHOM?
> what particular application makes a decision to throw me an error?

Trusted by you for sure.
The error is raised by openssl.

Accepting any SSL connections would be the same as not doing SSL at all.
All the security is based on trust chain from a root you considere sure 
to the leave certificate signed by the upper CA(s).

Regards