"How to modify local files" matching MCP servers:

Enables AI agents to send emails and manage tasks in Microsoft To Do with scoped, low-risk access to Microsoft Graph.

Enables pushing enriched leads into Instantly or Smartlead campaigns with ICP score gating, deduplication, and dry-run previews via an Apify actor.

Enables checking lead rows, CSV files, or Apify datasets for duplicates, email syntax and risk signals, domain issues, missing fields, and stale dates, returning a per-row import, review, or reject verdict so only clean records reach a CRM or sequencer.

Enables Gmail label management with tools to list, create, delete labels, and modify labels on messages and threads, handling OAuth2 authentication automatically.

Local-first Microsoft Outlook MCP server: a single Go binary that manages calendar events and mail through the Microsoft Graph API over stdio, with tokens stored in the OS keychain and no Entra ID app registration required. Exposes four aggregate tools (calendar, mail, account, system) dispatched by an operation verb, with multi-account support and read-only and mail-gating modes.

Baryon connects MCP-compatible AI assistants to Proton Mail through a local bridge, enabling email search, reading, attachment handling, and draft creation while enforcing deliberate permission limits. It runs locally and cannot send, delete, or modify mail.

Connects an MCP client to an existing classic Outlook session on Windows so agents can browse stores and folders, list recent messages, run literal text and metadata searches, and read plain-text bodies with attachment metadata. All access is strictly read-only, with no sending, deleting, moving, or network connections of its own.

Sends document files (EPUB, PDF, DOCX, etc.) to your Kindle via email using Amazon's Send to Kindle feature.

MCP server for self-hosted Listmonk newsletters: manage subscribers, lists, campaigns, templates (including from local files), media and transactional email. File access is sandboxed to a configured directory.

Enables local automation of classic Outlook for Windows via COM, allowing email search, folder listing, calendar leave block creation, and contact/recipient management without needing cloud APIs or admin approval.

Local-first Gmail MCP server using PKCE + loopback OAuth flow that stores refresh tokens in the OS keychain, enabling secure read/write Gmail access via MCP tools without tokens leaving the device.

An MCP server that sends plain-text Gmail messages only to a predefined allowlist, using generated recipient IDs instead of email addresses to enforce security.

Connect all your email accounts to your AI agent — not just one. AnyMail MCP is a local MCP server that gives an agent full read/send/organize/delete access across multiple Gmail accounts at once, over IMAP/SMTP.

A local, privacy-first MCP server that automatically tracks entry-level tech job openings and upcoming USA tech conferences and emails you a clean HTML digest on a smart schedule.

One-pass agentic inbox triage as an MCP server: fetch unread Gmail → classify (action_needed/fyi/newsletter/noise) → summarize → extract tasks → draft replies as Gmail DRAFTS (never sends) → flag calendar → write a triage report. Four stdio tools (fetch_emails, save_gmail_draft, append_tasks, write_report); the host is the LLM, so it runs keyless in Claude Code. Gmail scopes: readonly + compose

MCP server for privacy-gated local Apple data access including Mail, Messages, Notes, Calendar, Contacts, Photos, Reminders, Voice Memos, and iCloud Drive.

Gmail MCP server — scope-gated tools (readonly / send / modify), path jails for attachments + downloads, hardened OAuth credentials, Sigstore-signed releases.

Enables reading, searching, organizing, archiving, and drafting email and calendar events in a locally running classic desktop Outlook via COM, with attachment saving and safety boundaries that prevent sending or deleting mail.

Exposes a fictional small business as 46 MCP tools spanning CRM, inbox, calendar, invoicing and phone, letting agents read and modify customers, deals, messages and payments with validated, audited writes that stay inside the process.

Enables MCP clients to search, read, and inspect Apple Mail on macOS, including conversations and attachments. It can create new, reply, reply-all, or forward drafts, but cannot send or modify existing messages.

Local stdio MCP server that mirrors the public Gmail MCP server tool surface while calling the Gmail REST API directly, enabling email management tasks like creating drafts, searching threads, and managing labels.

Enables agents to read and draft Proton Mail messages, browse and download Proton Drive files, and read calendar agendas or prepare import files through local connections. Mail sends and Drive uploads stay disabled until explicitly enabled and verified.

A Model Context Protocol (MCP) server that allows Claude Desktop to send documents directly to your Kindle e-reader.

Enables AI agents to search and page through local Thunderbird mbox mail, read message bodies and attachments with SHA-256 verification, open native compose windows, create native drafts, and send explicitly authorized email through existing Thunderbird identities over MCP stdio. Queries stay read-only and never modify the mbox, while account authentication and real delivery remain with Thunderbird.

Enables a local, cost-controlled voice assistant for macOS that routes requests between local and Claude models, provides draft-only email and calendar access via Thunderbird and Granola with a restricted allowlist, and supports meeting follow-ups.

Enables Claude to read and, when explicitly enabled, modify Gmail, Google Calendar, and Google Drive across multiple Google Workspace accounts while defaulting to read-only access.

Provides read-only access to Proton Mail through the local Proton Bridge, enabling search, retrieval, and listing of messages, threads, folders, and attachments without any mutating capabilities.

Enables MCP clients to access and manage email over IMAP, POP3, and SMTP, including listing, searching, reading, sending, downloading attachments, and managing flags, moves, and deletions using environment-based credentials and TLS.

Personal-assistant MCP server for managing personal data including calendar events, emails (read/label only), and contacts via local files or Gmail IMAP.

Enables AI assistants to send emails via Gmail and append text to Google Docs or local files.