Mailbox MCP
Email for Claude in the inbox you already own: Outlook, Hotmail, Gmail, iCloud, Yahoo or any IMAP. Send real attachments, no base64. No copy kept.
- Brand
- Mailbox MCP
- Category
- Productivity
- Primary Subcategory
- Email Clients & Inbox Assistants
Integration details
Description
Mailbox MCP connects Claude to the email account you already have: Outlook and Microsoft 365, personal Outlook.com, Hotmail and Live, Gmail and Google Workspace, iCloud Mail, Yahoo Mail, Fastmail, Zoho, GMX, or any IMAP mailbox on your own domain. Nothing is migrated and no copy of your mail is kept. Email attachments, done properly. Claude sends real files without spelling them out in base64: a file already in your mailbox, a web link, or a file dropped on an upload link is fetched by the server as the message is built, up to 20 MB a message, and never passes through the chat. It reads inside them too: an invoice total, a spreadsheet, a scanned letter. Looking for a way to connect Claude to Outlook or Hotmail? This is it. It connects to the mailbox behind Outlook, so it works whether or not Outlook is installed. Ask what has come in and get the senders, subjects and first line of every message in one answer. Search across folders, read a message or a whole thread without marking anything as read, send, reply and forward as yourself or any alias, save a draft as a real threaded reply, and file or clear out mail the way your own mail client does. Routines put it on a schedule: a morning brief, replies drafted for the people waiting on you, the emails nobody has answered, or the bills that arrived. Add one to Claude as a scheduled task (a paid Claude plan) and its card shows when it last ran. Contacts and calendar come too: Outlook contacts, Google contacts or any CardDAV address book, and Microsoft 365, Google Calendar or CalDAV calendars. Find a person, see who is free, book and move meetings, and set your out-of-office. Every connection carries a permission level you choose: read only, draft and file, or send and delete. A shared mailbox can be worked by a team: claim a message, hand one on, hold a draft for approval. It can also tell you whether an email arrived. BSolve IT Limited, the company behind it, holds Cyber Essentials certification.
- Integration type
- Connector
- Verification status
Community connector- Platform
- Claude
- Primary Subcategory
- Email Clients & Inbox Assistants
- Secondary Subcategories
- None listed
- Brand
- Mailbox MCP
- Access
- Account required
- First tracked
- 2026-09-07
- Tool count
- 69
- Market
- US
The Primary Subcategory used for this profile’s headline score.
Other Subcategories where the Integration is listed.
Claude Connector discovery is coming soon
Community Connectors only appear in Claude’s registry.Once verified, organic discovery begins and we can calculate your score.Read more about Community Connector verification.
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What discovery looks like

Claude can surface verified Connectors when they match a user’s Prompt.
How Claude Connector discovery works
Your Connector will compete to appear for users’ Prompts once Claude verifies it
Competing in Claude Email Clients & Inbox Assistants
View Category69 tools agents can invoke
Mailbox MCP Claude Connector FAQ
How the directory, categories and Discoverability Score work.
Read the methodologyHow do I improve Mailbox MCP's Claude Connector discoverability?
The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.
What are Mailbox MCP alternatives on Claude?
As of 2026-11-02, Mailbox MCP competes with Microsoft 365, Gmail, Superhuman Mail, Fastmail, Google Calendar, Circleback, Fyxer, Fax.Plus and 42 more in Claude Email Clients & Inbox Assistants, ranked by public Discoverability Score.
Where is this profile measured?
This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.