Best Alternatives to Mailbox MCP

Microsoft Outlook MCP

Runtime: npx

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

Imap MCP Server

Runtime: npx

IMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants

Mailbox MCP

Runtime: npx

Multi-account email MCP server for Gmail, IMAP, and JMAP: search, send, drafts, labels.

MCP server for the Gmail API: search, read and send email, manage drafts, labels and the trash.

SenderKit

Runtime: npx

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

Fluxmail

Runtime: npx

Read, search, draft, send, and organize email through Gmail and IMAP/SMTP mailboxes.

Fluxmail

Runtime: npx

Read, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.

IMAP MCP Pro

Runtime: Remote (SSE)

Production IMAP & SMTP for Claude: multi-account email search, triage, send, and spam checks.

Gmail

Runtime: npx

Gmail MCP server — send, read, and search email. By Strider Labs.

Line Bot MCP Server

Runtime: npx

Verified

Connects an AI agent to LINE Messaging API for messaging, user profiles, quotas, followers, and rich-menu management.

Sebastianall1977 Gmail MCP

Runtime: npx

Manage Gmail end-to-end: search, read, send, draft, label, and organize threads. Automate workflow…

Abnormal Security MCP

Runtime: npx

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