Unverified50% confidenceFactExact time
Fastmail's core technical team is one of the primary maintainers of the Cyrus IMAP open-source mail server.
1
Sources
50%
Confidence
Long-term
Relevance
8/9/2026
First Seen
Sources
Fastmail推出欧盟数据区：邮件数据主权的新选择
Related Claims
UnverifiedThe IMAP protocol was proposed in 1986, allowing clients to directly manage emails on the server and supporting multi-device synchronization.71% similarUnverifiedIMAP is defined by RFC 3501 (2003) and POP3 by RFC 1939 (1996); IMAP treats the server as the authoritative mail store and synchronizes all operations.70% similarUnverifiedIMAP采用轮询模式，客户端定期主动查询服务器是否有新邮件，而Webhook采用推送模式由服务端主动发送HTTP POST请求66% similarUnverified该项目原生支持 IMAP 和 SMTP 协议，可接入 Thunderbird、Outlook 等邮件客户端65% similarUnverified该客户端支持全局快捷键唤起、AWS IAM认证集成和macOS钥匙串安全集成57% similar
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