# Communication MCP servers online

Check the source documentation for each connection.

3 MCP servers. Also on the [web page](https://mcpdirectory.fyi/au/global/online/category/communication).

## MCP servers

1. [Email Inbox API + Sending by Sendmux](https://mcpdirectory.fyi/au/global/online/email-inbox-api-sending-by-sendmux.md), Communication, Online: AI email inbox and sending tools with attachments, search, live events, and webhooks.
2. [Outlook Assistant](https://mcpdirectory.fyi/au/global/online/outlook-assistant.md), Communication, Online: Microsoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.
3. [Voicemode](https://mcpdirectory.fyi/au/global/online/voicemode.md), Communication, Online: Natural voice conversations for AI assistants - STT/TTS via MCP

## Other categories in Online

- [Developer tools](https://mcpdirectory.fyi/au/global/online/category/developer-tools.md): 13 MCP servers
- [Search and research](https://mcpdirectory.fyi/au/global/online/category/search-research.md): 5 MCP servers
- [AI and media generation](https://mcpdirectory.fyi/au/global/online/category/ai-media-generation.md): 4 MCP servers
- [Productivity and collaboration](https://mcpdirectory.fyi/au/global/online/category/productivity-collaboration.md): 4 MCP servers
- [Data and databases](https://mcpdirectory.fyi/au/global/online/category/data-databases.md): 3 MCP servers
- [Security](https://mcpdirectory.fyi/au/global/online/category/security.md): 3 MCP servers
- [Cloud and DevOps](https://mcpdirectory.fyi/au/global/online/category/cloud-devops.md): 2 MCP servers
- [Other tools](https://mcpdirectory.fyi/au/global/online/category/other-tools.md): 2 MCP servers
- [Sales and marketing](https://mcpdirectory.fyi/au/global/online/category/sales-marketing.md): 2 MCP servers
- [Finance and crypto](https://mcpdirectory.fyi/au/global/online/category/finance-crypto.md): 1 MCP server
- [Knowledge and memory](https://mcpdirectory.fyi/au/global/online/category/knowledge-memory.md): 1 MCP server
- [Web and browser automation](https://mcpdirectory.fyi/au/global/online/category/web-browser-automation.md): 1 MCP server