Massive Mail
The inbox you deserve.
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The inbox you deserve.
A three-pane layout, rich compose, threaded conversations, scheduling, search, and more — all lightning fast.
Classic three-pane layout — folders, message list, and reading pane
Full-featured editor with formatting, attachments, signatures, and template support.
Time your emails perfectly. Pick a date and time or choose a smart suggestion.
Follow entire conversations in one view. Expand, collapse, and reply inline.
Find anything instantly with full-text search across all mailboxes.
Clear read/unread states, flags, and labels help you stay on top of things.
Right-click for quick actions — snooze, print, move, label, and more.
Snooze messages to reappear when you need them. A dedicated folder keeps track.
Pin your most-used searches right in the sidebar for one-click access.
An integrated AI assistant that helps you write better emails faster. Summarize threads, generate replies, adjust tone, translate messages, and more — all without leaving your inbox.
Full-featured calendar with month and week views, event creation, and calendar sharing — integrated right into your mail.
Month view
Week view
Create events with recurrence, reminders, and attendees
Share calendars with colleagues
Manage contacts with rich profiles, groups, and seamless integration with compose autocomplete. Import and export via vCard.
Enterprise-grade email security with end-to-end encryption, authentication verification, HTML sanitization, and external image blocking.
Manage PGP keys, encrypt outgoing messages, and verify signed emails — built right in.
See SPF, DKIM, DMARC, and ARC results at a glance for every message.
Open any DMARC aggregate report email and see a rich inline dashboard — compliance rate, published policy, per-source-IP breakdown with DKIM and SPF results. Supports gzip, zip, and plain XML reports from Google, Microsoft, Yahoo, and all other providers. No external tools needed.
Dark mode, custom signatures, email templates, filter rules, vacation responders, folder colors, and keyboard shortcuts — configure every detail.
A gorgeous dark theme that's easy on the eyes, day or night.
Navigate your entire inbox without touching the mouse. Gmail-style shortcuts built in.
Fully responsive design that adapts seamlessly from desktop to tablet to phone. Every feature works perfectly on any device — no native app required.
Massive Mail is built with a modern, high-performance stack designed for speed, reliability, and real-time responsiveness.
Free/busy scheduling, company directory, absence indicators, folder sharing, and meeting room booking — everything your team needs.
Press Cmd+K to instantly navigate, compose, search, or change settings.
Archive, delete, or mark messages read with one click — action buttons appear on hover.
Color-coded file type icons, extension badges, and split download buttons.
Share mailbox folders with colleagues — view or full edit permissions via JMAP.
Spam score display, one-click "Not Spam" action, and Bayesian filter training.
Shared resources overview, free/busy toggle, and company directory settings.
