SMTP

Giả lập phản hồi 354 Start Mail Input

The server is ready to receive the message body. The client should begin sending the email content (headers and body) and terminate with a single line containing only a period (CRLF.CRLF).

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1 Phản hồi HTTP

Phản hồi HTTP
HTTP/1.1 354 Start Mail Input
Content-Type: application/json
Date: Tue, 25 Feb 2026 12:00:00 GMT

2 Kiểm tra với curl

terminal
curl -i https://httpbin.org/status/354

3 Trả về 354 Start Mail Input trong Framework của bạn

django
from django.http import HttpResponse


def my_view(request):
    return HttpResponse(status=354)  # Start Mail Input
flask
from flask import Flask

app = Flask(__name__)


@app.route("/endpoint")
def my_endpoint():
    return "", 354  # Start Mail Input
fastapi
from fastapi import FastAPI
from fastapi.responses import Response

app = FastAPI()


@app.get("/endpoint")
def my_endpoint():
    return Response(status_code=354)  # Start Mail Input
express.js
// Express.js
app.get('/endpoint', (req, res) => {
  res.sendStatus(354); // Start Mail Input
});
spring boot
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

@RestController
public class MyController {

    @GetMapping("/endpoint")
    public ResponseEntity<Void> myEndpoint() {
        return ResponseEntity
            .status(354) // Start Mail Input
            .build();
    }
}
go net/http
package main

import "net/http"

func myHandler(w http.ResponseWriter, r *http.Request) {
    w.WriteHeader(354) // Start Mail Input
}
ruby on rails
class MyController < ApplicationController
  def my_action
    head :start_mail_input
  end
end
asp.net core
// ASP.NET Core Minimal API
app.MapGet("/endpoint", () =>
    Results.StatusCode(354) // Start Mail Input
);

Thêm trang giả lập SMTP