ZapSMTP / Docs / Received emailsResponse
List received emails
GET/v1/emails/receiving
List received (inbound) emails, newest first.
Requires a full-access key.
action is default, webhook, store, reject or spam_reject. in_reply_to_email_id appears only when the message replies to an email you sent through ZapSMTP.
Query parameters
limitinteger- 1-100; out-of-range falls back to 20. Default
20. beforestring- Cursor: an email id or RFC 3339 time; returns messages received before it. An email id gives an exact page boundary. Limits: 422 invalid_parameter "before must be an email id or RFC 3339 time"
afterstring- Email id or RFC 3339 time. Limits: 422 invalid_parameter "after must be an email id or RFC 3339 time"
qstring- Case-insensitive substring of sender, recipient or subject, or an exact id.
statusstring- One of
received,rejected. domainstring- Inbound domain name (exact).
thread_idstring (UUID)- Only emails of this conversation (see
GET /threads/{id}). automatedstringfalse: only emails a person wrote;true: only automated ones; or one type:bounce,out_of_office,auto_reply,auto_generated,bulk. Limits: 422 invalid_parameter for other values.
Errors
restricted_api_keyHTTP 403invalid_parameterHTTP 422inbound_not_configuredHTTP 503- inbound email is not enabled on this deployment
curl 'https://zapsmtp.xyz/v1/emails/receiving?limit=10' \
-H "Authorization: Bearer $ZAP_API_KEY"const res = await fetch('https://zapsmtp.xyz/v1/emails/receiving?limit=10', {
method: 'GET',
headers: {
Authorization: `Bearer ${process.env.ZAP_API_KEY}`,
},
});
// 204 No Content (e.g. a delete) has no body
const data = res.status === 204 ? null : await res.json();
if (!res.ok) throw new Error(`${data.name}: ${data.message}`);
console.log(data);import os
import requests
res = requests.get(
"https://zapsmtp.xyz/v1/emails/receiving?limit=10",
headers={"Authorization": f"Bearer {os.environ['ZAP_API_KEY']}"},
timeout=30,
)
res.raise_for_status()
print(res.json() if res.status_code != 204 else "deleted")<?php
$ch = curl_init('https://zapsmtp.xyz/v1/emails/receiving?limit=10');
curl_setopt_array($ch, [
CURLOPT_CUSTOMREQUEST => 'GET',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
'Authorization: Bearer ' . getenv('ZAP_API_KEY'),
],
]);
$data = json_decode(curl_exec($ch), true);
$status = curl_getinfo($ch, CURLINFO_RESPONSE_CODE);
if ($status >= 400) {
throw new RuntimeException($data['message']);
}
print_r($data);package main
import (
"fmt"
"io"
"net/http"
"os"
)
func main() {
req, err := http.NewRequest(
"GET",
"https://zapsmtp.xyz/v1/emails/receiving?limit=10",
nil,
)
if err != nil {
panic(err)
}
req.Header.Set("Authorization", "Bearer "+os.Getenv("ZAP_API_KEY"))
res, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer res.Body.Close()
out, _ := io.ReadAll(res.Body)
fmt.Println(res.Status, string(out))
}require 'net/http'
require 'json'
uri = URI('https://zapsmtp.xyz/v1/emails/receiving?limit=10')
req = Net::HTTP::Get.new(uri)
req['Authorization'] = "Bearer #{ENV.fetch('ZAP_API_KEY')}"
res = Net::HTTP.start(uri.host, uri.port, use_ssl: true) { |http| http.request(req) }
puts res.code, (JSON.parse(res.body) unless res.body.to_s.empty?)import java.net.URI;
import java.net.http.*;
public class ZapRequest {
public static void main(String[] args) throws Exception {
var request = HttpRequest.newBuilder(URI.create("https://zapsmtp.xyz/v1/emails/receiving?limit=10"))
.header("Authorization", "Bearer " + System.getenv("ZAP_API_KEY"))
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
var response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.statusCode() + " " + response.body());
}
}using System.Net.Http.Headers;
using System.Text;
using var http = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Get, "https://zapsmtp.xyz/v1/emails/receiving?limit=10");
request.Headers.Authorization = new AuthenticationHeaderValue(
"Bearer", Environment.GetEnvironmentVariable("ZAP_API_KEY"));
var response = await http.SendAsync(request);
Console.WriteLine($"{(int)response.StatusCode} {await response.Content.ReadAsStringAsync()}");Set
ZAP_API_KEY in your environment.Response 200 OK
{
"object": "list",
"has_more": false,
"data": [
{
"object": "email",
"id": "019a1f30-1d4e-7a6b-8c2d-3e4f5a6b7c8d",
"from": "jane@example.org",
"from_name": "Jane Doe",
"to": [
"support@acme.com"
],
"cc": [],
"bcc": [],
"reply_to": [],
"received_for": [
"support+1234@acme.com"
],
"subject": "Re: Ticket #1234",
"message_id": "<CAF=abc123@mail.example.org>",
"created_at": "2026-10-21T15:10:02.904Z",
"attachments": [
{
"id": "5b0f8f7e-2a1c-5d3e-9f4a-6b7c8d9e0f1a",
"filename": "screenshot.png",
"content_type": "image/png",
"content_disposition": "attachment",
"content_id": null,
"size": 48213
}
],
"status": "received",
"action": "webhook",
"is_spam": false,
"spam_score": 1.2,
"size": 61877,
"in_reply_to_email_id": "019a1f2e-7c3b-7d41-9a52-0c4b8e6f1a23"
}
]
}