
Mailbutler Smart Assistant
8.9#2 in email clientsFree planFree planAndroidiOSWebExtension
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| Fact | Mailbutler Smart Assistant | OutMass |
|---|---|---|
| Headquarters | Berlin, Germany | 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom |
| Integrations | Business plans sync tracking events with HubSpot and Salesforce and support Google Analytics 4 UTM data. | The service uses Microsoft Graph API, Supabase, Stripe, Upstash, and PostHog as third-party services. |
| Product | Mailbutler presents Smart Assistant as an AI email assistant for Apple Mail, Gmail, and Outlook. | OutMass is a Chrome and Edge extension that adds mail merge and mass email to Outlook on the web. |
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.
OutMass suits people who send personalized campaigns from Outlook on the web and want tracking or automated follow-ups. It requires a Microsoft 365 or Outlook.com account and a Chrome or Edge extension.