“They allow specifically secured access to services such as IMAP, SMTP, CalDAV, CardDAV, or WebDAV”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“you can choose between two variants: two-factor authentication using the TOTP method (Time-based One-Time Password)”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“You also have the option of encrypting your emails with S/MIME and PGP.”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“Our servers are located exclusively in Germany (Berlin), as this ensures German data protection law and the European GDPR apply.”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“Our email service can be directly integrated into your existing IT infrastructure via the mailbox API.”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
mailbox.org 是功能完整的德系套件：E2EE 邮件 + CalDAV 日历 + CardDAV 联系人，一价全包。 优势. 一个订阅覆盖邮件+日历+联系人；mailbox.org 间 E2EE；界面现代整洁；100% 欧盟（德国）基础设施。 劣势. 对外部域名无 E2EE（TLS）；API/自动化弱于 Google Workspace / Microsoft 365；管理面向中小企业，非大企业。 价格. 当前入门价格、免费档与存储容量见上方「已核实规格」面板——数据取自服务商官方定价页，不在各语言之间手工复制。 v1 结论: 要「E2EE + 全合一」时欧盟最完整、性价比最高的选择；高度自动化的组织慎选。