What is the best alternative to Solmail MCP?

The top-rated alternatives to Solmail MCP in the Communication category include Telegram MCP, Slack MCP Server, Mailbox MCP. These servers offer complementary or alternative capabilities depending on your deployment stack and authentication requirements.

How do Solmail MCP alternatives differ in installation and runtime?

Solmail MCP and its alternatives vary by runtime requirement (Node.js/npx, Python/uvx, Docker, or remote HTTP/SSE endpoints). Check the specification comparison table above to verify command requirements before installing.

Are alternatives to Solmail MCP free and open source?

Most MCP servers listed on AllMCPs are open source tools under MIT or Apache licenses that you can self-host or run locally with Claude Desktop, Cursor, VS Code, or Windsurf.

How do I side-by-side compare Solmail MCP with a specific alternative?

Click the "Compare side-by-side →" button on any alternative card to see an in-depth comparison matrix covering feature lists, stars, npm downloads, install configurations, and schema specifications.

Communication• MCP Alternatives Guide

Best Alternatives to Solmail MCP

Looking for an alternative to Solmail MCP? Whether you need a different runtime environment, custom authentication support, or alternative API integrations in the Communication ecosystem, we have cataloged and compared the top alternative MCP servers below.

Browse all Communication servers →View Solmail MCP Specs →

Target Reference Server

Solmail MCP Overview

This MCP server enables AI agents to compose, price, and send real physical mail globally using Solana payments. It integrates with Lob.com for printing and mailing, and supports payment on Solana devnet or mainnet. Use it when you want to automate sending physical mail with cryptocurrency payment and blockchain verification.

Primary Use Cases for Solmail MCP:

Server Name	Runtime	Auth	Pricing	GitHub Stars	Downloads	Action
Solmail MCP (Target)	npx	API key	Free	1	—	Current
Telegram MCP	npx	API key	Free	348	—	Compare →
Slack MCP Server	—	Other	Free	1,828	—	Compare →
Mailbox MCP	Remote (SSE)	API key	Paid	2	—	Compare →
Email MCP	npx	Other	Free	110	—	Compare →
Inbox Zero	npx	OAuth	Freemium	12,211	—	Compare →
Agenticmail	npx	API key	Bring your own API key (usage-based cost)	221	—	Compare →
MCP Server	npx	API key	Bring your own API key (usage-based cost)	5	—	Compare →
Sendmux Sdk	uvx	OAuth	Freemium	73	—	Compare →
Joinly	uvx	API key	Bring your own API key (usage-based cost)	565	—	Compare →
Nworks	npx	OAuth	Free	25	—	Compare →
Email MCP	npx	Other	Free	21	—	Compare →
Line Bot MCP Server	—	API key	Free	780	—	Compare →

Detailed Evaluation of Solmail MCP Alternatives

Telegram MCP

Runtime: npx

Telegram API MCP server for accessing user data, dialogs, messages, and managing read status.

Key Features:

Get current user account info

List dialogs with optional unread filter

Retrieve messages from dialogs

2 0 348

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Slack MCP Server

Runtime not confirmed

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

Key Features:

Supports Stdio, SSE, and HTTP transports

Operates in OAuth or stealth mode without bot installs

Smart history fetch by date range or message count

1 0 1,828

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Mailbox MCP

Runtime: Remote (SSE)

API server for sending and receiving physical mail with tracking, cost control, and webhook events.

Key Features:

Send USPS, FedEx, UPS mail classes from PDFs or documents

Inbound mail OCR and context extraction via private forwarding aliases

Sandbox mode with test keys for full lifecycle simulation

2 0 2

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Email MCP

Runtime: npx

Connects AI assistants to IMAP and SMTP accounts for reading, composing, organizing, scheduling, and analyzing email.

Key Features:

IMAP and SMTP email access

Multi-account configuration

Search, threading, drafts, and templates

3 0 110

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Inbox Zero

Runtime: npx

An MCP server that enhances Gmail with AI features for inbox organization, reply tracking, and email management.

Key Features:

AI personal assistant for inbox organization and reply drafting

Natural language AI rules for custom email handling

Reply Zero tracking for reply and follow-up management

1 0 12,211

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Agenticmail

Runtime: npx

Runs a local mail server for agents to send and receive email, use disposable inboxes, retrieve codes, and send SMS.

Key Features:

Local mail server

Disposable inboxes

Real email send and receive

4 0 221

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MCP Server

Runtime: npx

MCP server for sending and tracking physical postcards worldwide, including bulk delivery and webhook notifications.

Key Features:

Send postcards with an image, message, and address details

Process bulk postcard orders asynchronously

Check delivery status for sent postcards

1 0 5

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Sendmux Sdk

Runtime: uvx

Email inbox API MCP server enabling AI agents to receive, search, and send mail via Sendmux hosted or local MCP.

Key Features:

Supports Sendmux hosted and local MCP deployments

Provides mailbox API for email retrieval and search

Supports sending emails via Sendmux sending API

2 0 73

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Joinly

Runtime: uvx

MCP server enabling AI agents to join and interact in browser-based meetings via voice, chat, and transcripts.

Key Features:

Cross-platform support for Zoom, Teams, Google Meet

Live voice and chat interaction capabilities

Access to meeting transcript and chat history

2 0 565

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Nworks

Runtime: npx

Connects AI clients to NAVER WORKS for messaging, calendars, files, mail, tasks, boards, and organization data.

Key Features:

NAVER WORKS messaging and directory tools

Calendar event management

Drive file transfer and listing

4 0 25

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Email MCP

Runtime: npx

Manage Gmail, Outlook, iCloud, and IMAP email accounts through MCP tools for reading, sending, organizing, and batch operations.

Key Features:

Multi-provider email access

OAuth2 for Gmail and Outlook

IMAP/SMTP support

4 0 21

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Line Bot MCP Server

Runtime not confirmed

Verified

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

Key Features:

Push text and Flex messages

Broadcast messages to followers

Retrieve user profiles and follower IDs

3 0 780

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Best Alternatives to Solmail MCP

Solmail MCP Overview

Specification Matrix: Solmail MCP vs Alternatives

Detailed Evaluation of Solmail MCP Alternatives

Telegram MCP

Slack MCP Server

Mailbox MCP

Email MCP

Inbox Zero

Agenticmail

MCP Server

Sendmux Sdk

Joinly

Nworks

Email MCP

Line Bot MCP Server

Frequently Asked Questions: Solmail MCP Alternatives