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Mailbutler
By Mailbutler GmbH · mailbutler.io
3,3 Good
Berlin-based add-on that puts an AI assistant directly in Gmail, Outlook and Apple Mail to write and reply to emails. Own servers are in Frankfurt, but the AI itself runs via OpenAI in the USA (with masked email addresses).
Best for: Those who want AI help with email directly in their existing inbox without switching email client.
Pros
- EU company with ISO 27001 and servers in Frankfurt
- Works inside Gmail, Outlook and Apple Mail
- Writes, replies, summarises and creates tasks automatically
Cons
- AI feature (Smart Assistant) requires paid Smart plan (~165 SEK/user/month)
- AI runs on OpenAI in the USA, not within the EU
- Per-user price rises for larger teams
Quick facts
| Price | From approx 165 SEK/month |
|---|---|
| Origin | EU/EEA (Mailbutler GmbH) |
| Categories | Email assistance |
| EU data storage | Yes |
| GDPR terms (DPA) | Yes |
Certifications
ISO 27001
Source: vendor trust center →
Sources & evidence
Claims about data storage, jurisdiction and compliance should be verifiable. Here is the evidence behind the statements above:
- Mailbutler – Homepage (ISO 27001, GDPR and servers in Frankfurt) →
- Mailbutler – Help centre: GDPR compliance (German company, DPA and OpenAI use) →
- Mailbutler – Privacy policy (Mailbutler GmbH in Berlin, OpenAI as sub-processor) →
- Mailbutler – Pricing page (AI assistant included in Smart plan) →