MailCopilot
MailCopilot is a desktop email client for Linux, macOS, and Windows, with a unified inbox, offline access, scheduled sending, and calendar tools.
What MailCopilot is
MailCopilot is a desktop email client for Linux, macOS, and Windows, with a unified inbox, offline access, scheduled sending, and calendar tools. Its email features include search, bulk actions, snooze, follow-up reminders, templates, and mail rules. Optional AI functions can triage email, draft smart replies, summarize threads, read attachments, search the web, and retain persistent memory. You can connect accounts through IMAP/SMTP or sign in to Gmail and Outlook with OAuth. MailCopilot supports Anthropic Claude, Google Gemini, OpenAI-compatible services, and local models through OpenAI-compatible endpoints; you provide the API key. The app is free and open source under AGPL-3.0. Its privacy policy says data is stored locally, and email is sent to an AI provider only with consent and on request. AI is disabled by default, actions require confirmation, internet access is off by default, and actions are recorded in an exportable log. Your AI provider may charge for API use; daily and monthly budget controls are available. Native iOS and Android apps are planned.
Good
- Free and open source under AGPL-3.0
- Unified inbox with offline sync
- Supports IMAP/SMTP and Gmail or Outlook OAuth
- AI actions require confirmation and are logged
- Data is stored locally, according to its privacy policy
Watch out
- Users must provide their own AI API key
- AI providers may charge for API use
- Native iOS and Android apps are only planned
Who it suits
MailCopilot suits desktop users who want email, calendar tools, and offline access in one app. It may also fit users who want to choose an AI provider or use local models and control when email data is shared.
Verdict
MailCopilot combines a broad set of desktop inbox tools with optional AI and local data storage. Check provider charges and confirm your preferred account and model setup before relying on its AI features.
Plans and prices
From MailCopilot's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Linux · Windows · macOS · AGPL-3.0 open source · Free |
The facts
Each one read from MailCopilot's own pages, with the date it was checked.
What it does
- AI controls
- AI actions require explicit confirmation, internet access is off by default, and AI actions are recorded in an exportable audit log.checked 9 Oct 2026
- AI features
- Its AI features include email triage, smart replies, thread summaries, attachment reading, web search, and persistent memory.checked 9 Oct 2026
- AI privacy
- The privacy policy says the AI assistant is disabled by default and email data is sent to an AI provider only with explicit consent and on request.checked 9 Oct 2026
- AI providers
- It supports Anthropic Claude, OpenAI-compatible services, Google Gemini, and local models through OpenAI-compatible endpoints; users bring their own API key.checked 9 Oct 2026
- Calendar tools
- Yeschecked 24 Sep 2026
- Data storage
- The privacy policy says user data is stored locally and MailCopilot does not operate cloud servers to store emails, contacts, or settings.checked 9 Oct 2026
- Email connections
- Users can connect accounts with IMAP/SMTP or use OAuth sign-in for Gmail and Outlook.checked 9 Oct 2026
- Inbox tools
- Features include a unified inbox, search, bulk actions, snooze, follow-up reminders, templates, mail rules, and offline sync.checked 9 Oct 2026
- Integrations
- MailCopilot supports MCP client connections to tools such as Obsidian, task managers, and calendars, and can expose email tools to external agents.checked 9 Oct 2026
- Mobile status
- Native iOS and Android apps are listed as planned on the roadmap.checked 9 Oct 2026
- Offline access
- Yeschecked 24 Sep 2026
- Product
- MailCopilot is an AI-native desktop email client for managing email.checked 9 Oct 2026
- Scheduled sending
- Yeschecked 24 Sep 2026
- Security
- The site says credentials are secured through the OS keychain, HTML email is sandboxed and sanitized, and TLS certificate pinning is supported.checked 9 Oct 2026
- Support
- The site links to a Telegram channel and GitHub repository for community contact and project information.checked 9 Oct 2026
- Unified inbox
- Yeschecked 24 Sep 2026
Money
- AI costs
- Users who use their own AI provider API key are responsible for that provider's charges; MailCopilot provides daily and monthly budget controls.checked 9 Oct 2026
- Free plan
- Yeschecked 24 Sep 2026
Where it runs
- App coverage
- desktopchecked 24 Sep 2026
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