SkillFoxx

Mail.ru MCP server

Mail.ru MCP Server (Go Production Edition)

A Go MCP server for Mail.ru mail, SMTP and cloud storage that requires human confirmation before sending mail or changing files

  • 1 ★ on the repository
  • Last commit
  • MIT
MCP server

Broad access

Why this level

  • Can send mail and delete cloud files on the user's behalf
  • Uses an app password with access to mail and WebDAV
All reasons and checks
Russian stack

thenovanodes/mailru-mcp-serverAuthor:TheNovaNodes

Install

Services

Manual install

make build

Builds a static binary from the Go source.

Access and checks

How we review

Broad accessThe tool can change data, run commands or handle secrets.

  • Can send mail and delete cloud files on the user's behalf
  • Uses an app password with access to mail and WebDAV

This is third-party code. Review the repository files before installing.

What it does

The server runs as a single Go binary and gives an agent 13 tools: reading mail over IMAP from the inbox and smart folders, fetching a message body, searching subject and body, saving a draft, plus listing, downloading, uploading and deleting files in Mail.ru cloud storage over WebDAV. Any operation that sends mail, moves a message or changes cloud files does not run immediately: the server issues a single-use token that must be confirmed with a separate execute_pending_action call, and the token expires after an hour. Every network call is capped at a 15-second timeout, and file paths are checked to stay inside allowed directories.

Who it is for. For people who want an agent to access Mail.ru mail and cloud storage, but only with mandatory confirmation before sending mail or changing files.

Good fit when

  • You want an agent to read and search Mail.ru mail and prepare draft replies
  • You need access to files in Mail.ru cloud storage over WebDAV with a check before changes
  • You need mail sending and file deletion to never happen without confirmation

Not a fit when

  • You need Mail.ru calendar or contacts: the service does not support them, the author suggests Nextcloud instead
  • You want a ready npm or Docker package: the server is built from Go source

Example request

Find recent messages from accounting in my Mail.ru inbox and draft a reply

MCP

Transport
stdio
Authentication
API key

Environment variables

MAILRU_USERNAME required
Mail.ru email address.
MAILRU_APP_PASS required, secret
Mail.ru app password, not the main account password.
MAILRU_ALLOWED_ROOTS
Comma-separated list of allowed directories for file operations.

Limitations

The project is very new, has a single author, no releases or packaging, and installs only by building from Go source via go build or make build. It needs a Mail.ru app password, not the main account password. Mail.ru calendar and contacts are intentionally unsupported.

How to disable. Remove the mailru-mcp-server entry from your MCP client config and stop the binary process.

FAQ

Can the server send mail without me noticing?

No, sending mail, moving a message and changing cloud files first create a confirmation token that expires in an hour and must be executed with a separate call.

Is Mail.ru calendar supported?

No, Mail.ru does not offer a public CalDAV server and rejects CardDAV requests, so the author suggests managing calendar and contacts through Nextcloud instead.

Discussion

No questions or reviews yet.

All Mail.ru tools
Russian stack

An MCP server for Mail.ru mail: reading, search, folder sorting and archiving that works around Mail.ru's IMAP quirks

MCP serverExtended access2
Russian stack

A small read-only MCP server for Mail.ru mail: listing, reading, searching and folders, with no ability to send or delete

MCP serverBroad access
Russian stack

An MCP server for Mail.ru email in Claude.ai, plus a separate Telegram bot that checks the inbox every 15 minutes and alerts on important messages

MCP serverBroad access
Russian stack

A skill for reading and searching email over IMAP via the myl CLI: Gmail, Yandex Mail, Mail.ru, autodiscovery for others

SkillMinimal access2

An email MCP with 52 tools: the agent reads, searches, sends and sorts mail across several accounts over IMAP and SMTP, and schedules sends

MCP serverBroad access158

README in short

The README describes the Go architecture using the mcp-go and go-imap libraries, gives a table of 13 tools marking which need confirmation, and explains the two-phase confirmation model with a token and a limit on pending actions. It also covers environment variables, a sample MCP router config and the build, test and lint commands.

README badge

Report a problem