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All Features

Your inbox, not theirs.

Full IMAP/SMTP email client with 7 provider presets, OAuth2 for Google and Microsoft, conversation threading, HTML sanitization, and sender trust system. Your email stays on your devices.

An email client that minds its own business

PrivStack Email connects directly to your existing IMAP/SMTP accounts. Messages are stored locally and encrypted. HTML is sanitized, untrusted senders are flagged, and conversations are threaded for easy reading. Your email, your device, your rules.

They read your email

Free email services read your messages to target ads. Even paid services store your email on their servers. Your inbox reveals contacts, plans, finances, and personal conversations.

Multi-Account Support

Connect multiple email accounts with preset configurations for Gmail, Outlook, Yahoo, iCloud, ProtonMail, and Fastmail. OAuth2 for Google and Microsoft.

  • 7 provider presets with auto-configuration
  • OAuth2 authentication for Google and Microsoft
  • Multiple accounts in one unified inbox
  • Custom IMAP/SMTP for any provider

Reading & Composing

Safe HTML rendering with sender trust system, conversation threading, compose with signatures and attachments, and auto-draft saving.

  • HTML sanitizer with untrusted sender warnings
  • Conversation threading (togglable)
  • Rich compose with signatures and attachments
  • Auto-draft saving every 30 seconds

Sync & Organization

Real-time sync via IMAP IDLE with incremental fetching. Organize with system folders, custom labels, and bulk actions.

  • IMAP IDLE for real-time notifications
  • Incremental sync — only fetch new messages
  • Custom labels and folder management
  • Bulk actions: read, star, delete, archive, junk

Ready to get started?

Try PrivStack free for 7 days. Your data stays on your devices.

End-to-end encrypted Works offline No account required