public void sendVCode(String email, String vCode) {
        try {
            // 如果是除杭州region外的其它region（如新加坡region）， 需要做如下处理, 这个居然是通过工单文过来的!!!
            DefaultProfile.addEndpoint("dm.ap-southeast-1.aliyuncs.com", "ap-southeast-1", "Dm", "dm.ap-southeast-1.aliyuncs.com");
        } catch (ClientException e) {
            e.printStackTrace();
        }
        
        DefaultProfile profile = DefaultProfile.getProfile("ap-southeast-1", "*******", "*******");
        IAcsClient client = new DefaultAcsClient(profile);

        SingleSendMailRequest request = new SingleSendMailRequest();
        request.setTextBody("验证码：" + vCode);
        request.setSubject("验证码来啦");
        request.setToAddress(email);
        request.setAddressType(0);
        request.setReplyToAddress(false);
        request.setAccountName("[email protected]");

        try {
            SingleSendMailResponse response = client.getAcsResponse(request);
            System.out.println(new Gson().toJson(response));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    }

注意这段代码：

try {
            // 如果是除杭州region外的其它region（如新加坡region）， 需要做如下处理, 这个居然是通过工单文过来的!!!
            DefaultProfile.addEndpoint("dm.ap-southeast-1.aliyuncs.com", "ap-southeast-1", "Dm", "dm.ap-southeast-1.aliyuncs.com");
        } catch (ClientException e) {
            e.printStackTrace();
        }