Is posteo.net a Disposable Email?

Details

Status

whitelisted

Added

2025-09-03

Last Checked

2026-06-23

Reason

posteo.net

Registration Data

Registrar

INWX GmbH

Registered

2006-04-08 (20 years, 2 months)

Expires

2027-04-08

Website Preview

Screenshot may be up to 14 days old.

API Playground

Check posteo.net programmatically — pick your language, copy, run. No authentication required.

curl https://trashmail-blacklist.org/check/json/posteo.net

import requests

r = requests.get("https://trashmail-blacklist.org/check/json/posteo.net")
data = r.json()
print(data["status"])  # blacklisted / whitelisted / unknown

const r = await fetch("https://trashmail-blacklist.org/check/json/posteo.net");
const data = await r.json();
console.log(data.status); // blacklisted / whitelisted / unknown

<?php
$json = file_get_contents("https://trashmail-blacklist.org/check/json/posteo.net");
$data = json_decode($json, true);
echo $data["status"]; // blacklisted / whitelisted / unknown

package main

import (
    "encoding/json"
    "fmt"
    "net/http"
)

func main() {
    resp, err := http.Get("https://trashmail-blacklist.org/check/json/posteo.net")
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    var result struct {
        Status string `json:"status"`
        Domain string `json:"domain"`
    }
    json.NewDecoder(resp.Body).Decode(&result)
    fmt.Println(result.Status)
}

Click "Run" to fetch the JSON response for posteo.net.

Also available as xml, yaml, or img — replace json in the URL.

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9 other domains also use mx01.posteo.de as their mail server.

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