# Proton Mail (unofficial) MCP server

Unofficial Proton Mail MCP — send, read, search & organize email over SMTP and IMAP

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-sethbang-proton-mail-mcp
- Repository: https://github.com/sethbang/proton-mail-mcp
- Website: https://sethbang.github.io/proton-mail-mcp/

## Install
- Command: `npx -y proton-mail-mcp`
- Auth: Auth required by registry metadata

## Setup notes
- Package: Npm proton-mail-mcp v1.0.2
- Environment variable: PROTONMAIL_USERNAME (required)
- Environment variable: PROTONMAIL_PASSWORD (required; secret)
- Environment variable: PROTONMAIL_HOST (default smtp.protonmail.ch)
- Environment variable: PROTONMAIL_PORT (default 587)
- Environment variable: PROTONMAIL_SECURE (default false)
- Environment variable: IMAP_HOST (default 127.0.0.1)
- Environment variable: IMAP_PORT (default 1143)
- Environment variable: IMAP_SECURE (default false)
- Environment variable: IMAP_USERNAME
- Environment variable: IMAP_PASSWORD (secret)
- Environment variable: READONLY (default false)
- Environment variable: RESTRICT_OUTBOUND_TO_SELF (default false)
- Environment variable: ALLOW_FILE_DOWNLOAD_DIR
- Environment variable: ALLOW_EMPTY_FOLDER (default false)
- Environment variable: DEBUG (default false)
- The upstream registry signals required auth or secrets.

## Tools
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## Resources
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## Prompts
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## Metadata
- Owner: io.github.sethbang
- Version: 1.0.2
- Runtime: Npm
- Transports: STDIO
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: May 30, 2026
- Source: https://registry.modelcontextprotocol.io