Is mail21.cc a Disposable Email?
Blacklistedmail21.cc is a known disposable email provider. Emails from this domain are likely temporary and should not be trusted for account registrations.
Think this listing is wrong?
Report mail21.cc as a false positive and we'll review it.
Think this listing is wrong?
Report mail21.cc as a false positive and we'll review it.
Details
- Status
- blacklisted
- Added
- 2025-09-06
- Last Checked
- 2026-06-23
- Reason
- mail21.cc
Registration Data
- Registrar
- CSC Corporate Domains, Inc.
- Registered
- 2020-04-17 (6 years, 2 months)
- Expires
- 2027-04-17
API Playground
Check mail21.cc programmatically — pick your language, copy, run. No authentication required.
curl https://trashmail-blacklist.org/check/json/mail21.ccimport requests
r = requests.get("https://trashmail-blacklist.org/check/json/mail21.cc")
data = r.json()
print(data["status"]) # blacklisted / whitelisted / unknownconst r = await fetch("https://trashmail-blacklist.org/check/json/mail21.cc");
const data = await r.json();
console.log(data.status); // blacklisted / whitelisted / unknown<?php
$json = file_get_contents("https://trashmail-blacklist.org/check/json/mail21.cc");
$data = json_decode($json, true);
echo $data["status"]; // blacklisted / whitelisted / unknownpackage main
import (
"encoding/json"
"fmt"
"net/http"
)
func main() {
resp, err := http.Get("https://trashmail-blacklist.org/check/json/mail21.cc")
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 mail21.cc.
Also available as xml, yaml, or img — replace json in the URL.
DNS Records
MX Records
- inbound-smtp.us-east-1.amazonaws.com
NS Records
- eric.ns.cloudflare.com
- kay.ns.cloudflare.com
SOA Record
- eric.ns.cloudflare.com
- dns@cloudflare.com
TXT Records
- v=spf1 -all
Related Domains by Mail Server
50 other domains also
use inbound-smtp.us-east-1.amazonaws.com
as their mail server.
Domain Network
Connections between domains, mail servers, nameservers, and shared infrastructure.
FAQ
Is mail21.cc a disposable email provider?
Yes, mail21.cc is blacklisted as a disposable email provider in our database.
Can I use mail21.cc for account registration?
mail21.cc is a known disposable email provider. Accounts registered with this domain may be temporary and unreliable.
How can I block disposable emails from mail21.cc?
Use the Trashmail-Blacklist API to check mail21.cc before accepting it in your application. Send a GET request to /check/json/mail21.cc to receive the domain status as JSON. Integrate this check into your signup or contact forms to automatically reject disposable email addresses.
What data is available for mail21.cc?
mail21.cc is blacklisted in our database. We provide its blacklist status, the date it was added, DNS records (MX, A, TXT), related domains sharing the same mail server, and a website screenshot if available.
Block Disposable Emails Automatically
Integrate our free API into your signup flow to detect domains like mail21.cc before they reach your database.