Best Alternatives to MailFathom

Line Bot MCP Server

Runtime: npx

Verified

MCP server integrating LINE Messaging API to send messages, manage rich menus, and access user profiles.

SenderKit

Runtime: npx

Build and send email, SMS, and push straight from your AI agent.

Abnormal Security MCP

Runtime: npx

Abnormal Security email threats, cases, and reporting in your terminal and your AI agents.

MCP Emails

Runtime: npx

Read, search, send, organize, draft and schedule email across your inboxes from any MCP client.

Slack MCP Server

Runtime: npx

MCP server providing Slack workspace data access with message history, threads, DMs, user info, and optional message posting.

Mailbuttons

Runtime: npx

Governed email for AI agents: sandbox inboxes, server-side policy gate, tamper-evident audit.

Microsoft Outlook MCP

Runtime: npx

Microsoft Outlook (mail) MCP server — read, search, and send email through Microsoft Graph.

AgentPing

Runtime: npx

Let your AI agent notify you by email, Slack, Discord, or webhook. One tool: send_notification.

Sentvia MCP

Runtime: npx

Email for AI agents: inboxes, send/reply/forward, search, threads, webhooks — 21 SentVia tools.

Sentfromai MCP

Runtime: npx

Email for AI agents: inboxes, send/reply/forward, search, threads, webhooks — 21 SentFromAI tools.

Validator AI MCP

Runtime: npx

AI-powered validator ai MCP server for agents. Supports validate json, validate email, validate

Mail Index

Runtime: npx

Local-first, read-only MCP server for recall over your Gmail: search, contacts, threads, digests.