MailGun Api示例

Question

我正在使用mailgun进行测试，我复制了示例并输入了我的域和密码，但它不起作用，我也没有收到邮件

我已经输入了my :域名和API密钥。

import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.JsonNode;
import com.mashape.unirest.http.Unirest;
import com.mashape.unirest.http.exceptions.UnirestException;

public static JsonNode sendSimpleMessage() throws UnirestException {

    HttpResponse<JsonNode> request = Unirest
            .post("https://api.mailgun.net/v3/" + "sandbox21801cd223b94bbc92dbd011424xxxxx.mailgun.org"
                    + "/messages")
            .basicAuth("api", "xxx8013e6a2e75889370b0d2e670b2e")
            .queryString("from", "Excited User <notifications-noreply@miempresa.com>")
            .queryString("to", "joseluis.garcia@miempresa.com").queryString("subject", "hello")
            .queryString("text", "testing").asJson();

    return request.getBody();
}

错误：

Exception in thread "main" com.mashape.unirest.http.exceptions.UnirestException: java.lang.RuntimeException: java.lang.RuntimeException: org.json.JSONException: A JSONArray text must start with '[' at character 1
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:143)
at com.mashape.unirest.request.BaseRequest.asJson(BaseRequest.java:68)
at com.abalia.crm482.sms_mail.mailSendInfobip.sendSimpleMessage(mailSendInfobip.java:22)
at com.abalia.crm482.sms_mail.mailSendInfobip.main(mailSendInfobip.java:11)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: org.json.JSONException: A JSONArray text must start with '[' at character 1
at com.mashape.unirest.http.HttpResponse.<init>(HttpResponse.java:106)
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:139)
... 3 more

Caused by: java.lang.RuntimeException: org.json.JSONException: A JSONArray text must start with '[' at character 1
at com.mashape.unirest.http.JsonNode.<init>(JsonNode.java:51)
at com.mashape.unirest.http.HttpResponse.<init>(HttpResponse.java:95)
... 4 more
Caused by: org.json.JSONException: A JSONArray text must start with '[' at character 1
at org.json.JSONTokener.syntaxError(JSONTokener.java:410)
at org.json.JSONArray.<init>(JSONArray.java:113)
at org.json.JSONArray.<init>(JSONArray.java:157)
at com.mashape.unirest.http.JsonNode.<init>(JsonNode.java:48)
... 5 more