Disposable Email Providers

Explore disposable and temporary email providers and view the domains associated with each provider. Open a provider to explore its domain portfolio.

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StopReg maps disposable and temporary email providers to their associated domains, helping you identify temporary email infrastructure before it becomes a source of signup abuse.

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Provider Domains

Browse domains associated with disposable email providers.

Total domains 30,677

About provider domains

This directory contains domains associated with the provider. Each domain has an individual StopReg page containing classification signals, mail infrastructure information and discovered subdomains.

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dcs21sd.online

Complete StopReg analysis for dcs21sd.online, including DNS, mail infrastructure and classification.

!
Disposable Domain
StopReg classification
DOMAIN OVERVIEW

About dcs21sd.online

dcs21sd.online is a disposable email domain. StopReg identifies dcs21sd.online as a disposable email domain and provides information to help websites recognize and manage registrations using temporary email addresses.

Domain Age 93 days
Last Seen 8/28/2026
Free Subdomain No
Provider emailfake.com
SUBDOMAIN DIRECTORY

Subdomains of dcs21sd.online

Discovered subdomains associated with this root domain.

0 discovered
Total subdomains0
Subdomain Root Domain Last checked
No subdomains discovered for dcs21sd.online.
API RESPONSE

Domain validation result

The same intelligence shown on this page can be returned through the StopReg API.

{
  "input": {
    "suggestion": null,
    "domain": "dcs21sd.online"
  },
  "domain": {
    "root": "dcs21sd.online",
    "is_subdomain": false,
    "email_provider": "emailfake.com"
  },
  "mail_server": {
    "mx_found": true,
    "mx_records": [
    {
        "hostname": "emailfake.com",
        "priority": 1,
        "ips": [
            "91.196.52.205"
        ]
    }
],
    "mx_provider": []
  },
  "classification": {
    "is_disposable": true,
    "is_relay": false,
    "is_private": false,
    "is_public": false,
    "is_role_based": false,
    "is_alias": false,
    "alias_method": null,
    "is_edu": false,
    "is_isp": false,
    "is_free_subdomain": false
  },
  "list_match": {
    "blocklisted": "Login to configure the blocklist",
    "block_source": null,
    "allowlisted": "Login to configure the allowlist"
  },
  "policy": {
    "action": "block",
    "reason_code": "DISPOSABLE_DOMAIN",
    "reason": "Domain is used for temporary email addresses",
    "risk": "high"
  }
}

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DNS & MAIL RECORDS

MX Records SPF DMARC DKIM A/AAAA NS SOA TXT DNSSEC
Priority Host Mail Server TTL
1 emailfake.com 91.196.52.205 N/A
!MX records indicate that this domain can receive emails

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dcs21sd.online

This disposable domain is associated with emailfake.com.

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DEVELOPER API

Real-time email intelligence

Classify disposable, relay, alias, role-based and other risky email addresses before creating accounts.

Example API response

{
  "email": "[email protected]",
  "classification": {
    "is_disposable": true,
    "is_relay": false,
    "is_alias": false,
    "is_role_based": false
  },
  "mail_server": {
    "mx_found": true
  }
}

Frequently Asked Questions About dcs21sd.online

Your questions around disposable email, answered.

Yes. StopReg classifies dcs21sd.online as a disposable email domain that provides temporary email addresses. Addresses from this domain may be used for short-term registrations and may increase the risk of fake signups or free-trial abuse.

dcs21sd.online is associated with emailfake.com, a disposable email service that provides temporary email addresses. These addresses may be used for short-term registrations, website testing, and accessing online services without a permanent email address. Like other disposable email services, they can also be exploited for fake signups, free-trial abuse, spam, and automated account creation.

If your website requires reliable email addresses for account registration, blocking dcs21sd.online may help reduce disposable email signups and free-trial abuse. However, the decision depends on your registration policy and business needs. StopReg can classify email addresses in real time, allowing you to block, flag, or accept registrations based on your own validation rules.

Use the StopReg API to check email addresses during registration. The API returns disposable-email classification data that your application can use to apply your signup policy and decide whether to accept, block, or flag registrations using dcs21sd.online.