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21CN Mail
by 21CN Mail
What 21CN Mail is
21CN Mail is a freemium email service for sending and receiving messages through the web, Android, and iOS. Free Mail can collect and manage mail from up to eight other email accounts. Users can schedule delivery to a chosen hour, while filters can match sender, subject, or message size to reject, forward, or automatically reply. The service supports SMTP, POP, IMAP, and webmail, with setup guides for Foxmail, Microsoft Outlook, Apple Mail, iPad Mail, iPhone Mail, and Android clients. Contacts, incoming-mail classification rules, signatures, and templates may synchronize across devices, subject to availability. The maker describes content- and behavior-based antispam, plus Qianxin antivirus scanning for incoming and outgoing messages with hourly definition updates. Accounts exceeding capacity may be unable to send or receive until space is freed. Accounts without login or POP use for six consecutive months may be cleaned up. Support includes a 24/7 call center and 5×8 technical assistance.
Who it suits
21CN Mail suits users wanting web and mobile email with external-account collection, scheduling, filtering, and standard mail protocols. It may also fit people using common desktop and mobile mail clients.
What it does well
- Free Mail includes 16 GB mailbox storage
- Collects mail from up to eight other accounts
- Supports SMTP, POP, IMAP, and webmail
- Offers scheduled sending and configurable filters
- Provides Android, iOS, and web access
What to know first
- Mailbox and daily sending quotas are limited
- Inbox is not ad-free
- Inactive accounts may be cleaned up after six months
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| 尊贵版 | 16 GB mailbox storage · 200 recipients per bulk send | On request |
| 非凡邮 | 500 recipients per bulk send | On request |
| Free Mail | Mailbox capacity and daily sending are limited; exact quotas not stated | Free |
| VIP Mail | Paid membership; benefits vary by tier and may include mailbox capacity and group sending | On request |
As mail.21cn.com lists them, read 22 Sept 2026. The maker's own page has the final word.
Verdict
21CN Mail offers broad client access and practical filtering, scheduling, and collection features on a free tier. Users should note quota limits and the inactivity cleanup policy before relying on it for long-term storage.
Facts from 21CN Mail's own pages
- Account sync
- The service can sync contacts, incoming mail classification rules, signatures, and mail templates across devices, subject to actual availability. · mail.21cn.com, 11 Oct 2026
- Ad-free inbox
- No · mail.21cn.com, 22 Sept 2026
- Antispam
- The maker describes a content and behavior analysis based intelligent antispam system. · mail.21cn.com, 11 Oct 2026
- Client compatibility
- The help center provides setup guides for Foxmail, Microsoft Outlook, Apple Mail, iPad Mail, iPhone Mail, and Android email clients. · mail.21cn.com, 11 Oct 2026
- Email protocols
- The service supports SMTP, POP, IMAP, and webmail access. · mail.21cn.com, 11 Oct 2026
- Free plan
- Yes · mail.21cn.com, 22 Sept 2026
- Headquarters
- Guangzhou, China · mail.21cn.com, 28 Sept 2026
- Inactive account limit
- The service agreement says accounts with no login or POP mail use for six consecutive months may be cleaned up, including the account and its mail. · mail.21cn.com, 11 Oct 2026
- Mailbox collection
- Free Mail can collect and manage mail from up to eight other email accounts. · mail.21cn.com, 11 Oct 2026
- Mailbox storage
- 16 · mail.21cn.com, 22 Sept 2026
- Mail filters
- Filters can match sender, subject, or message size and can reject, forward, or automatically reply to messages. · mail.21cn.com, 11 Oct 2026
- Mobile app
- The linked mobile client download page lists iOS and Android and also offers an official email mini program. · mail.189.cn, 11 Oct 2026
- Platform access
- web_and_mobile · mail.21cn.com, 22 Sept 2026
- Privacy and storage
- The privacy policy says personal information collected and generated in China is stored within China and describes security measures intended to protect personal information. · mail.21cn.com, 11 Oct 2026
- Purpose
- 21CN Mail provides email sending and receiving. · mail.21cn.com, 11 Oct 2026
- Scheduled sending
- Users can schedule email delivery, with the scheduled time set to the hour. · mail.21cn.com, 11 Oct 2026
- Support
- The feature page states 24/7 call center response and 5×8 professional technical support. · mail.21cn.com, 11 Oct 2026
- Usage limits
- Accounts have daily sending and mailbox capacity limits; exceeding the capacity can stop sending and receiving until space is freed. · mail.21cn.com, 11 Oct 2026
- Virus protection
- The maker says incoming and outgoing mail is scanned by Qianxin real-time antivirus protection and that its virus definitions update automatically hourly. · mail.21cn.com, 11 Oct 2026
Where 21CN Mail stands on Freedom251
- Personal Email Services#58 of 115