Best Alternatives to BounceProtect MCP Server

Signaliz

Runtime: npx

B2B email verification, company signal enrichment, and governed GTM data pipelines.

Byteplant MCP

Runtime: uvx

An MCP server that provides Email, Phone and Address Validation Services from Byteplant

Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR.

Slack MCP Server

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

Lumail

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Official Lumail email marketing MCP for campaigns, subscribers, and workflows.

Line Bot MCP Server

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

Emailmd

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Convert markdown to email-safe HTML with linting and live preview via an MCP server or local CLI.

Google Workspace

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Give AI agents access to Gmail, Calendar, Drive, and more — multi-account, manifest-driven

Telnyx

Runtime not confirmed

Official TypeScript library for the Telnyx API

Atomic Mail

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Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.

Domani

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Domains + send/receive email + inbound webhooks + DNS for AI agents. One API, MCP, CLI.

Engagelab Email

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Send, receive, monitor and reply to email from AI agents with threaded inbox context.