SMTP
模拟 553 Mailbox Name Invalid 响应
The requested action was not taken because the mailbox name is syntactically incorrect. The email address does not conform to the expected format.
查看完整参考 →1 HTTP 响应
HTTP/1.1 553 Mailbox Name Invalid
Content-Type: application/json
Date: Tue, 25 Feb 2026 12:00:00 GMT
Content-Length: 60
{
"error": "server_error",
"message": "Mailbox Name Invalid"
}
2 使用 curl 测试
curl -i https://httpbin.org/status/553
3 在您的框架中返回 553 Mailbox Name Invalid
django
from django.http import JsonResponse
def my_view(request):
return JsonResponse(
{"error": "server_error", "message": "Mailbox Name Invalid"},
status=553,
)
flask
from flask import Flask, jsonify
app = Flask(__name__)
@app.route("/endpoint")
def my_endpoint():
return jsonify({"error": "server_error", "message": "Mailbox Name Invalid"}), 553
fastapi
from fastapi import FastAPI
from fastapi.responses import JSONResponse
app = FastAPI()
@app.get("/endpoint")
def my_endpoint():
return JSONResponse(
content={"error": "server_error", "message": "Mailbox Name Invalid"},
status_code=553,
)
express.js
// Express.js
app.get('/endpoint', (req, res) => {
res.status(553).json({"error": "server_error", "message": "Mailbox Name Invalid"});
});
spring boot
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.Map;
@RestController
public class MyController {
@GetMapping("/endpoint")
public ResponseEntity<Map<String, Object>> myEndpoint() {
return ResponseEntity
.status(553)
.body(Map.of("error", "mailbox_name_invalid",
"message", "Mailbox Name Invalid"));
}
}
go net/http
package main
import (
"encoding/json"
"net/http"
)
func myHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(553)
json.NewEncoder(w).Encode(map[string]string{
"error": "mailbox_name_invalid",
"message": "Mailbox Name Invalid",
})
}
ruby on rails
class MyController < ApplicationController
def my_action
render json: {"error": "server_error", "message": "Mailbox Name Invalid"},
status: :mailbox_name_invalid
end
end
asp.net core
// ASP.NET Core Minimal API
app.MapGet("/endpoint", () =>
Results.Json(
new { error = "mailbox_name_invalid", message = "Mailbox Name Invalid" },
statusCode: 553
)
);