sasl_server_new
result = sasl_server_new("smtp", hostname, NULL, NULL, NULL,
result = sasl_server_new("smtp", hostname, "", NULL, 0, conn);
result = sasl_server_new("smtp", hostname, NULL, NULL, 0,
result = sasl_server_new("smtp", AuthRealm, NULL, NULL, NULL,
result = sasl_server_new("smtp", AuthRealm, "", NULL, 0, &conn);
result = sasl_server_new("smtp", AuthRealm, NULL, NULL, 0,
LIBSASL_API int sasl_server_new(const char *service,