Mailbox MCP vs smao

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Mailbox MCP compared with smao
Detail	Mailbox MCP	smao
What it does	Connect Claude, ChatGPT or any AI to your email mailbox	AI phone assistant that answers calls, clarifies inquiries, and hands over to your team
Stage	Established	Startup
Founded	2002	2025
Based in	GB	DE
Pricing model	Freemium	Freemium
Pricing	Free: 5 calls per mailbox per day, no card required. Pro: £34.99 per mailbox per year plus VAT (£2.92 monthly equivalent). Team Access: Team 3 at £119.99 per year plus VAT, Team 5 at £199.99 per year plus VAT, Team 10 at £399.99 per year plus VAT per account.	Pay as you Go: 0.35 € per minute without base fee; Advanced: 249 € per month (annual contract) or 299 € monthly, 1,250 minutes included; Scale: 449 € per month (annual contract) or 499 € monthly, 3,000 minutes included; Enterprise: from 0.15 € per minute; additional chat messages at 0.006 € each, SM
Key features	Read email without marking as read Read attachments: PDFs, spreadsheets, photos Reply in thread with proper headers Send as any of your email aliases Email routines on a schedule Permission levels per connection Works with Gmail, Outlook and IMAP	Call analysis: automatically evaluates conversations and transfers inquiries, contact details and urgency to CRM, ticketing or workflows Internal dashboard chat for simulating calls and testing knowledge database Outbound calling: scheduled or event-based calls with clean tracking Personal call transfer to the right contact person Call transcripts: all conversations documented, traceable and exportable Widgets for simple interfaces leading callers to the AI assistant Knowledge database: answers from your own know-how, versioned and controllable Support for 10+ languages including German and Swiss German On-Premises deployment option on customer's Linux and Docker infrastructure
What makes it different	Leaves mailbox completely untouched—no duplicate sent items, no marked-as-read flags, threading preserved Works with any MCP-compatible AI—not limited to Claude or ChatGPT Attachments never encoded—up to 20 MB, four ways to attach without passing through AI Email routines run automatically on schedule without manual prompts	No OpenAI or US AI subprocessors in conversation processing Cloud hosting in Germany with GDPR and EU AI Act compliance No AI training with customer data Setup in minutes without technical knowledge required 50 free minutes for testing without credit card
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	26 +1 (up) since last check	35 no change since last check
Trust Flow (Majestic)	34	12
Citation Flow (Majestic)	32	26
Referring domains (Majestic)	61	44

8 details filled in for both companies.

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