Mailbutler Smart Assistant

Mailbutler Smart Assistant is ranked #3 of 143 in email clients on The Geeks Club, made by Mailbutler Smart Assistant (Berlin, Germany). It runs on Android, Browser extension, iOS, Linux, macOS, Web, Windows. There is a free plan. A free trial is offered. Paid plans start at $7/mo.

Mailbutler Smart Assistant plans and pricing

All plans

Starter Free Free forever · Starter features · Sent emails include a visible Mailbutler watermark mailbutler.io · 29 Sept 2026

Professional $7/mo billed annually Email tracking · Message templates · Mail merge · Inbox collaboration · Automations mailbutler.io · 19 Sept 2026

Smart $11/mo billed annually Smart Compose · Smart Improve · Smart Task Finder · Smart Summarize · Smart Follow-ups mailbutler.io · 19 Sept 2026

Business $24/mo billed annually All Smart features · CRM tracking data sync · Custom subdomain · Custom SMTP · Advanced signature marketing mailbutler.io · 19 Sept 2026

Professional (yearly billing) $7/mo Per user per month with yearly billing Email tracking · Templates and mail merge · Inbox collaboration · Signature marketing mailbutler.io · 29 Sept 2026

Professional (monthly billing) $9/mo Per user per month Email tracking · Templates and mail merge · Inbox collaboration · Signature marketing mailbutler.io · 29 Sept 2026

Compared on email clients

Free plan: Yes
Paid from: $4/user/mo
Inbox triage: Yes
AI reply drafting: Yes
Automatic sending: No
Thread summaries: Yes
Follow-up actions: Yes

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Mailbutler Smart Assistant

Free plan: Yes
Paid from: 4
Product: Mailbutler presents Smart Assistant as an AI email assistant for Apple Mail, Gmail, and Outlook.
Compose and reply: It drafts emails from keywords and generates replies, with an option to supply details for the response.
Writing controls: Its tuning option lets users adjust generated text’s format, length, style, tone, and language.
Summaries and tasks: It summarizes selected emails and finds to-dos that users can add to Mailbutler Tasks.
Improve drafts: Smart Improve suggests spelling and grammar improvements for a written email.
AI model: The product page says Smart Assistant uses OpenAI GPT-4o.
Email clients: The assistant works with Apple Mail, Microsoft Outlook, and Gmail.
Integrations: Mail Merge can use Apple, Google, or Outlook Contacts, HubSpot or Salesforce, and CSV data; CRM tracking sync is listed for HubSpot and Salesforce.
Plan requirement: Smart Assistant is included in the 14-day trial and requires a Smart or Business subscription afterward.
Security: Mailbutler says it is ISO/IEC 27001 certified and GDPR compliant, and that backend data is encrypted.
AI data processing: Mailbutler’s GDPR page says email body and subject are processed by Microsoft Azure OpenAI Service in the EU for Smart Assistant, with personal data redacted before submission to the underlying model.
Support: Mailbutler says its customer support team answers queries 24/7 and provides a Support Center.
Price from: $7/mo

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Where it ranks on The Geeks Club

Best Email Clients in 2026#3 of 143
Best AI Email Assistants in 2026#1 of 46
Best Email Tracking Software in 2026#1 of 41
Best Sales Email Tracking Software in 2026#1 of 27

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Sources

mailbutler.io/pricing/;· checked 19 Sept 2026
mailbutler.io/smart-assistant/· checked 29 Sept 2026
mailbutler.io/pricing/· checked 29 Sept 2026
mailbutler.io· checked 29 Sept 2026
mailbutler.io/gdpr-compliance/· checked 29 Sept 2026
help.mailbutler.io/en/articles/16498569-is-mailbutler-comp· checked 29 Sept 2026