“Fastmail has a special proxy system whereby you can access IMAP, POP and SMTP through any port number. […] Fastmail supports two-way sync of your calendar via the standard CalDAV protocol. […] Fastmail supports two-way sync of your contacts via the standard CardDAV protocol. […] Note: Basic plans do not include access to IMAP, SMTP, CalDAV, or CardDAV.”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“We support two-step verification with either an app on your phone or a dedicated security device that plugs into your computer.”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“We don't offer end-to-end encryption in our own apps”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“All customers, including trial users, have the option to choose EU or US servers, regardless of where you are located.”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
“Looking to integrate with Fastmail? You've come to the right place.”
逐字引自厂商页面。页面语言：英语。证据不作翻译。
Fastmail 是澳大利亚服务商，以 IMAP/SMTP 质量和可靠性著称——重度邮件用户的常用选择。 优势. 市场顶级 IMAP/SMTP 服务器；REST API 完整（此价位少见）；零广告零跟踪；人工支持响应快。 劣势. 无 E2EE 产品层（TLS + 可选 PGP）；无团队共享日历；Web 客户端功能化而非「惊艳」。 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: 「纯邮件」最佳选择——IMAP 一流、API 正经、价格合理，适合重度 IMAP 用户。