Local by default
Tokens are protected by the operating system secure storage. Offline mail data stays in the app's local database and cache.
Local-first multi-account email
Your mail, together and local.
MailHub brings the accounts you choose into one inbox while keeping credentials, indexes, messages and offline data on your device. It does not operate a mail relay or synchronization cloud.
One core, native experiences
Built as an email client, not another inbox cloud.
MailHub uses provider-approved authentication and established mail protocols. Google and Microsoft accounts use their official OAuth authorization pages. Providers such as QQ Mail and NetEase Mail use the provider-issued app password required for third-party IMAP/SMTP clients.
No MailHub cloud account
You connect directly to your selected email provider. MailHub does not host a copy of your mailbox on its own servers.
Open standards
A shared Rust core integrates mature IMAP, SMTP, MIME and OAuth components across mobile and desktop platforms.
GmailOutlookMicrosoft 365QQ Mail163 / 126 MailStandard IMAP / SMTP