Features
Per-recipient read receipts with double-check marks
Send later scheduling to any timezone
Snooze emails temporarily across all devices
Email thread collaboration with inline comments
Pulse activity center for tracking shares and comments
Inbox rules for auto-archive, auto-label, auto-forward
Templates and snippets for quick replies
Save emails to Todoist, Evernote, OneNote, Trello, Asana
Share emails via public link with expiry control
Calendar side-by-side with inbox
True dark mode including email content
Command palette (Cmd/Ctrl+K) and keyboard shortcuts
Block remote images and tracking pixels by default
Integration with AI assistants via secure deep links (2026)
AI automatic sorting into importance-based folders (@SaneLater, @SaneBlackHole)
BlackHole: permanently block and unsubscribe senders
Daily Digest: daily summary of low-priority unread emails
SaneNoReplies: follow-up reminders (ignores calendar invites since Nov 2025)
Snooze: delay emails to reappear later
SaneReminders: self-follow-up reminders
SaneAttachments: organize attachments by size/type
Email Deep Clean: bulk delete old/large emails
Custom DIY folders with mark-as-read option
Unwrap Your Inbox: annual year-in-review
Works with Gmail, M365, iCloud, Yahoo, Fastmail, IMAP, Exchange, ActiveSync
OAuth authentication, encrypted credential storage
14-day free trial, no credit card required
25% discount for education, non-profit, government
No downloads required; works with existing email client
