"How to Use or Manage Knowledge Base in Feishu" matching MCP servers:

Enables desktop AI agents to manage email through MCP with a single account setup, OS keyring credentials, enforced read/draft/manage permissions, client onboarding helpers, and a credential-free demo.

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

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

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

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

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.

Enables AI agents to create temporary email inboxes and wait for OTPs, magic links, or password reset emails via AgentTemp's API, useful for automation and verification workflows.

Enables sending documents (Markdown, PDF, EPUB) directly to a Kindle via Amazon Send-to-Kindle email, with Markdown converted to EPUB using pandoc.

Official MCP server for Shipmail, enabling agents to manage domains, mailboxes, messages, threads, webhooks, and suppressions via natural language.

Access 5+ ATXP agent tools via MCP: web search, AI image generation, email, and music generation. Free tier with pay-per-use Pro tier via x402 micropayments (USDC on Base mainnet).

Enables AI assistants to read, send, search, and manage emails in Apple Mail on macOS.

Enables autonomous agents to segment audiences, manage subscribers, and trigger Journey Builder workflows in Salesforce Marketing Cloud through natural language.

Read and write email through the Atomic Mail from an AI agent. Handles proof-of-work authentication and JMAP so the agent thinks in JMAP method calls. Use when the user asks to register an email inbox, list mailboxes, fetch or send email.

Enables AI agents to send and receive iMessages and emails, and manage agent identities, in MCP-compatible clients.

Enables AI assistants to read, send, and manage emails, calendars, and contacts in a Fastmail account via the JMAP protocol.

Enables AI assistants to manage multiple Gmail accounts simultaneously with built-in OAuth authentication, supporting email reading, sending, drafts, labels, and account management.

MCP server for Gmail shared inboxes and WhatsApp — read, reply, search, and organize your team's email from Claude, ChatGPT, or Cursor. 47 tools covering email threads, WhatsApp messaging, boards, contacts, knowledge base, analytics, and automations.

The email API your AI agent can actually use. A Model Context Protocol server for Send16 that gives Claude, Cursor, and any MCP client 79 tools to send transactional & marketing email, manage contacts, audiences, segments, automations, templates, the inbox, suppressions, and webhooks.

Enables AI agents to manage MONA Cloud resources such as VPS and databases, use a shared VND wallet, integrate MONA Pay payments, and send transactional email via MONA Mail, all through natural language in MCP-compatible clients.

Enables AI assistants to read, search, organize, and send email in a Viettel mailbox using built-in IMAP/SMTP server settings and encrypted credential storage. Supports optional read-only mode or a custom allowlist to restrict which mailbox tools an assistant can use.