Is rd21.com a Disposable Email?

Unknown

rd21.com is not yet classified in our database.

Details

Status
unknown
Added
2025-09-25
Last Checked
2026-06-24
Reason
deviceandbrowserinfo.com

Registration Data

Registrar
Blue Razor Domains, LLC
Registered
2016-10-28 (9 years, 7 months)
Expires
2026-10-28

Website Preview

Screenshot of rd21.com

Screenshot may be up to 14 days old.

API Playground

Check rd21.com programmatically — pick your language, copy, run. No authentication required.

curl https://trashmail-blacklist.org/check/json/rd21.com
Live response
Click "Run" to fetch the JSON response for rd21.com.

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

DNS Records

MX Records

  • mail.tutanota.de

NS Records

  • ns57.domaincontrol.com
  • ns58.domaincontrol.com

SOA Record

  • ns57.domaincontrol.com
  • dns@jomax.net

A Records

  • 15.197.148.33
  • 3.33.130.190

TXT Records

  • t-verify=d8cac3b188b832f327eea976eff21773
  • v=spf1 include:spf.tutanota.de -all

SPF Includes

  • spf.tutanota.de

Domain Network

Connections between domains, mail servers, nameservers, and shared infrastructure.

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FAQ

Is rd21.com a disposable email provider?

rd21.com has not yet been classified. It is currently unknown whether it is a disposable email provider.

Can I use rd21.com for account registration?

We have not yet verified rd21.com. Proceed with caution or use our API to check programmatically.

How can I block disposable emails from rd21.com?

Use the Trashmail-Blacklist API to check rd21.com before accepting it in your application. Send a GET request to /check/json/rd21.com 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 rd21.com?

rd21.com is not yet in our database. You can check it via our API or submit it for review through our contact form.

Block Disposable Emails Automatically

Integrate our free API into your signup flow to detect domains like rd21.com before they reach your database.