MailVault - Keep old email on your own disk as .eml files

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I’m Rokas, the maker at Graphic Meat. I built MailVault after helping a friend whose work mailbox kept filling up with invoices and shipping documents he still needed. MailVault is a desktop email client for macOS and Linux. It connects to Gmail, Microsoft 365, or an IMAP account. Select messages and choose Archive, and it saves a local copy as a standard .eml file in a Maildir-style folder. The server copy stays in place until you choose Archive & Delete. Saved mail remains searchable offline and the files can be opened by other apps that support EML. The Free version includes reading,

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AI 分析

痛点：工作邮箱常被发票和货运单据塞满，用户需要把旧邮件以可搜索、可迁移的本地 .eml/Maildir 格式归档，并选择是否从服务器删除。

目标用户：需要长期保存邮件、注重数据主权和离线检索的 Gmail/Microsoft 365/IMAP 用户，尤其是小企业主、自由职业者和合规敏感个人。

证据：I built MailVault after helping a friend whose work mailbox kept filling up with invoices and shipping documents he still needed. Premium is $4/month or $25/year and adds scheduled backups with health verification.

变现：Freemium 订阅：免费版手工归档，Premium 收 $4/月或 $25/年，提供定时备份、健康校验；后续可加团队版、合规导出、加密归档或一次性买断。

MVP：2 周内做跨平台命令行或极简桌面工具：通过 IMAP/Gmail OAuth 连接，选择文件夹/标签，批量导出为 Maildir/.eml，建立本地全文搜索索引，支持定时增量归档和可选删除；不做完整邮件客户端。

竞品：Thunderbird、MailStore Home、eM Client、Mailspring、imapsync、offlineimap/mbsync、Gmail Takeout

摘要：MailVault 是一款 macOS/Linux 桌面邮件客户端，把 Gmail、Microsoft 365 或 IMAP 邮件归档为本地 .eml/Maildir，免费版支持手动归档，Premium 定价 $4/月或 $25/年，增加定时备份与健康校验。痛点真实但样本仅来自作者朋友的邮箱塞满场景，帖子未给出付费用户数或收入证据，且已有 Thunderbird、MailStore 等大量竞品。