BounceCheckBounceCheck
    • Features
      Bulk Email Verification
      Verify thousands of emails at once
    • Tools
      Disposable Email Checker
      Detect throwaway email domains
      Disposable Providers
      Temp-mail services & the domains they use
      Email Extractor
      Extract emails from any text or file
      DNS Health Checker
      Check MX, SPF, DMARC, DKIM & blacklists
      SPF Record Generator
      Build a valid SPF record for your domain
      DMARC Record Generator
      Build a DMARC policy to stop spoofing
    • Pricing
    • Compare
    • Blog
    • Docs
    Sign inStart Free
    HomeProvidersjar3.cn

    § DISPOSABLE PROVIDER PROFILE

    jar3.cn

    A temporary email address provider running on 6 known domains behind mail infrastructure under jar3.cn. Addresses generated on any of its domains are temporary and typically stop receiving mail within hours or days.

    Most recently updated 6 hours ago

    jar3.cn stats

    Associated domains

    6

    Unique domains we've linked to jar3.cn.

    Most recent domain

    Added 6 hours ago

    Mail infrastructure

    jar3.cn

    Block throwaway signups

    Addresses on jar3.cn are disposable — reject them at signup with one API call.

    Get a free API key

    Domains associated with jar3.cn

    dermatocmail.comAdded 20 days ago
    A recordNone
    MX IP43.128.135.183
    MX hostmail.jar3.cn
    gynmail.comAdded 19 days ago
    A recordNone
    MX IP43.128.135.183
    MX hostmail.jar3.cn
    greenkic.comAdded 19 days ago
    A recordNone
    MX IP43.128.135.183
    MX hostmail.jar3.cn
    gonetor.comAdded 19 days ago
    A recordNone
    MX IP43.128.135.183
    MX hostmail.jar3.cn
    cholemail.comAdded 20 days ago
    A recordNone
    MX IP43.128.135.183
    MX hostmail.jar3.cn
    heframe.comAdded 19 days ago
    A recordNone
    MX IP43.128.135.183
    MX hostmail.jar3.cn

    § FAQ

    Frequently asked questions

    Yes. jar3.cn is a temporary/disposable email service — addresses generated on it are meant for short-term use and should generally be treated as unreachable for signups.

    § COLOPHON

    Email verification, made simple. Built for teams who care about clean data and clean code.

    § STATUS

    All systems operational
    BounceCheckBounceCheck

    Real-time email verification with a stealth SMTP engine. Built for deliverability obsessives.

    § PRODUCT

    • Features
    • Bulk Email Verification
    • Single Verify
    • Real-Time API
    • Integrations

    § TOOLS

    • Email Extractor
    • Disposable Email Checker
    • DNS Health Checker
    • SPF Record Generator
    • DMARC Record Generator

    § RESOURCES

    • Docs
    • Blog
    • Compare
    • Security
    • Pricing

    § COMPANY

    • About
    • Contact
    • Privacy
    • Terms

    © 2026 BounceCheck — All rights reserved.

    GDPRCCPAENCRYPTEDPRIVATE