21CN Mail

At a glance

• Editor score
  6.0 / 10
• Pricing
  Free plan
• Best for
  Basic free email with broad support coverage
• Free plan
  Yes
• Mailbox storage
  16 GB
• Facts checked
  22 Sep 2026

• Where it wins

  • Free access with POP, IMAP and SMTP support
  • Spam, virus, filtering and block/allow-list controls
  • Web, iOS and Android access with 24/7 support

• Where it doesn't

  • Commercial advertising may appear in the service
  • The free plan is less differentiated than specialized alternatives
  • No named third-party integrations are provided

Our verdict on 21CN Mail

21CN Mail is a personal email service from Tianyi Digital Life Technology Co., Ltd., designed for solo users and small-scale personal use. Its free plan provides webmail access for sending and receiving messages, while mobile access is available through iOS and Android. Standard POP, IMAP and SMTP support allows connection through compatible mail clients. Address-book management, signatures, templates, scheduled sending and mailbox collection add practical tools for everyday correspondence.

The service covers core mailbox management with spam filtering, virus protection, mail rules and block/allow lists. Users can also collect messages from other supported mailboxes, which makes 21CN Mail more suitable for consolidating personal accounts than a basic send-and-receive inbox. Support is available through email, chat, phone and documentation, with 24/7 support listed among the service channels. Its platform fit is therefore centered on web and mobile access plus standard email protocols, rather than a named application ecosystem.

Paid membership adds capacity and higher bulk-sending limits. The 尊贵版 plan provides a 16 GB mailbox, up to 200 recipients per bulk send and G-level security protection. 非凡邮 adds unlimited mailbox capacity, up to 500 recipients per bulk send, G-level storage, deleted-mail recovery and bulk-sending privileges. The published pricing records monthly plans with selectable 1-, 2- and 3-year service durations. 21CN Mail suits users who want free personal email with broad protocol support and extensive support coverage. Users seeking an ad-free mailbox or a more differentiated integration ecosystem should consider another service.

Your product? Our editors can test 21CN Mail in depth and publish a review, labelled as paid · from $149/mo →

21CN Mail pricing

All 2 21CN Mail plans and prices →

21CN Mail fact sheet

Alternatives to 21CN Mail

• GmailA capable free inbox with shared Google storage and a paid path to more space.9.4
• Outlook.comA capable free email service with useful organization tools and Microsoft 365 upgrades.9.2
• Proton MailA privacy-focused email service with strong encryption, migration tools, and broad platform coverage.9.0

See all 21CN Mail alternatives →

Featured on iTechGuides

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update