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Side-by-side comparison of two Model Context Protocol servers. Pick the right one for Claude Desktop, Claude Code, or Cursor.
MCP server for email deliverability: validate SPF/DKIM/DMARC/BIMI, check blacklists, test SMTP/IMAP, look up DNS, and generate ready-to-deploy records for any m
| Feature | MailX Tools | Slack |
|---|---|---|
| Pricing | Free | Free |
| Installs | — | 9,200 |
| Rating | — | 4.6 (158) |
| Verified | — | |
| Hosted | Hosted | Hosted |
| Tools | — | 4 |
| Category | communication | communication |
| Author | Mailwarm | Slack |
| Repo | Mailwarm/mailx-mcp | unyly/mcp-slack |
MCP server for email deliverability: validate SPF/DKIM/DMARC/BIMI, check blacklists, test SMTP/IMAP, look up DNS, and generate ready-to-deploy records for any major email provider. Ships with two one-click prompts (audit-deliverability, setup-dns). Public, no auth.
Bring your Slack into Claude. Catch up on channels, search history, send messages and summarize long threads.
Looking for something else? Browse all MCPs or check trending this week.