
Cursus
6.0#133 in email clientsFree planFree planLinuxWindows
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| Fact | Cursus | Mailbutler Smart Assistant |
|---|---|---|
| Integrations | The site names Claude and Claude Code as Bridge integrations, and identifies SMTP and Resend as sending options. | Business plans sync tracking events with HubSpot and Salesforce and support Google Analytics 4 UTM data. |
| Product | Cursus is a small, open source desktop email app for Windows and Linux that brings multiple accounts into one keyboard-driven client. | Mailbutler presents Smart Assistant as an AI email assistant for Apple Mail, Gmail, and Outlook. |
You want what its maker publishes above — check its page for the details.
It suits people who want AI drafting, reply, summary, and task-finding tools in Apple Mail, Outlook, or Gmail. Check the supported operating systems and subscription requirement before choosing it.