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SPECIFICTION
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21CN Mail

mail.21cn.com

Free plan WebiOSAndroid
Visit mail.21cn.com
Spec score 8.0 #67 of 115 in Personal Email Services

Spec sheet

Purpose
21CN Mail provides email sending and receiving.Read 11 Oct 2026 · mail.21cn.com
Free plan
YesRead 22 Sep 2026 · mail.21cn.com
Support
The feature page states 24/7 call center response and 5×8 professional technical support.Read 11 Oct 2026 · mail.21cn.com
Headquarters
Guangzhou, ChinaRead 28 Sep 2026 · mail.21cn.com
Account sync
The service can sync contacts, incoming mail classification rules, signatures, and mail templates across devices, subject to actual availability.Read 11 Oct 2026 · mail.21cn.com
Ad-free inbox
NoRead 22 Sep 2026 · mail.21cn.com
Antispam
The maker describes a content and behavior analysis based intelligent antispam system.Read 11 Oct 2026 · mail.21cn.com
Client compatibility
The help center provides setup guides for Foxmail, Microsoft Outlook, Apple Mail, iPad Mail, iPhone Mail, and Android email clients.Read 11 Oct 2026 · mail.21cn.com
Email protocols
The service supports SMTP, POP, IMAP, and webmail access.Read 11 Oct 2026 · mail.21cn.com
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.Read 11 Oct 2026 · mail.21cn.com
Mail filters
Filters can match sender, subject, or message size and can reject, forward, or automatically reply to messages.Read 11 Oct 2026 · mail.21cn.com
Mailbox collection
Free Mail can collect and manage mail from up to eight other email accounts.Read 11 Oct 2026 · mail.21cn.com
Mailbox storage
16Read 22 Sep 2026 · mail.21cn.com
Mobile app
The linked mobile client download page lists iOS and Android and also offers an official email mini program.Read 11 Oct 2026 · mail.189.cn
Platform access
web_and_mobileRead 22 Sep 2026 · mail.21cn.com
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.Read 11 Oct 2026 · mail.21cn.com
Scheduled sending
Users can schedule email delivery, with the scheduled time set to the hour.Read 11 Oct 2026 · mail.21cn.com
Usage limits
Accounts have daily sending and mailbox capacity limits; exceeding the capacity can stop sending and receiving until space is freed.Read 11 Oct 2026 · mail.21cn.com
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.Read 11 Oct 2026 · mail.21cn.com

Plans and prices

尊贵版 Price not published 16 GB mailbox storage · 200 recipients per bulk send Read 22 Sep 2026 · mail.21cn.com
非凡邮 Price not published 500 recipients per bulk send Read 22 Sep 2026 · mail.21cn.com
Free Mail Free Mailbox capacity and daily sending are limited; exact quotas not stated Read 11 Oct 2026 · mail.21cn.com
VIP Mail Priced on request Paid membership; benefits vary by tier and may include mailbox capacity and group sending Read 11 Oct 2026 · mail.21cn.com

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Where Specifiction places it

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