Third arg is name of the host to connect to, or its IP address.
Fourth arg PORT is an integer specifying a port to connect to.
If `starttls-use-gnutls' is nil, this may also be a service name, but
Third arg is name of the host to connect to, or its IP address.
Fourth arg PORT is an integer specifying a port to connect to.
If `starttls-use-gnutls' is nil, this may also be a service name, but