Method onServerError

Sming/Components/Network/src/Network/SmtpClient.h:169–172

* @brief Callback that will be called every an error occurs * @param callback */

	 * @param callback
	 */
	void onServerError(SmtpClientCallback callback)
	{
		errorCallback = callback;
	}

	using TcpClient::getSsl;
	using TcpClient::setSslInitHandler;