What is Mailbutler?

Mailbutler Smart Assistant is an AI email assistant for Apple Mail, Gmail, and Outlook that drafts, replies, summarizes, and corrects emails using GPT‑4o. It generates full email drafts from brief keywords and auto‑writes replies to selected messages, allowing quick insertion into the compose window.

The assistant extracts actionable items from email text and can add them to the Mailbutler Tasks list. Users can fine‑tune tone, length, style, and language through a dedicated tuning option. It corrects spelling and grammar, providing instant suggestions for improved wording.

Mailbutler on the web:

Mailbutler details

Company: Mailbutler GmbH
Jurisdiction: Germany
Built for: Individuals
Stated compliance: GDPR

Compliance as stated in Mailbutler's own published documentation.

Mailbutler tech specs

Works with: OpenAI / GPT
Analytics: Google Analytics
Integrations: Salesforce HubSpot Google Workspace Calendly

Mailbutler pricing

Free trial

Tracking € 395 3950 + € 083 vat + € 830 vat per user/mo per year

Professional € 795 7950 + € 167 vat + € 1670 vat per user/mo per year

Smart € 1295 12950 + € 272 vat + € 2720 vat per user/mo per year

Business € 2995 29950 + € 629 vat + € 6289 vat per user/mo per year

$32.92/mo is pricier than most for Email median $20/mo

Most Email tools start between $9.99 and $39 a month.

Free trial: 14 days
Refund window: 5 days
Auto-renewal: Yes

Trial, refund and renewal terms as stated in Mailbutler's own published documentation.

Verify on the official pricing page.

Start free trial

Mailbutler's key features

Compose emails from keywords
Generate email responses
Summarize long emails
Improve spelling and grammar
Extract tasks from emails
Customize tone, style, length

Mailbutler use cases

Draft concise follow-up emails in Gmail with GPT‑4o, automatically adjusting tone to match client persona and storing drafts on EU servers for GDPR compliance
Generate instant replies in Apple Mail that summarize long threads, correct grammar, and extract actionable tasks for Mailbutler’s list, all while keeping data within the EU
Compose personalized outreach emails in Outlook, fine‑tune length for busy executives, and use GPT‑4o to ensure a professional tone, with all content stored on GDPR‑compliant servers