WarmInboxes Free Deliverability Tools
com.warminboxes/deliverability-tools
Free cold email deliverability checks, list tools, inbox planning and original placement research.
Live right now. Status from the official MCP Registry and our live checks, registry entry updated 2026-10-22.
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- Registry name
com.warminboxes/deliverability-tools- Status
- Live
- Sign-in
- No auth
- Tools
- 40
- Handshake
- 303 ms
- Remote URL
https://warminboxes.com/mcp- Publisher
- warminboxes.com domain ✓
- Trust grade
- B (70/100)
- Version
- 1.0.0
- Updated
- 2026-10-22
40 tools, pulled live
check_deliverability check_spf check_dkim check_dmarc check_bimi check_mta_sts check_ssl check_dns lookup_txt check_rdns check_blacklist check_surbl check_nameservers check_domain_expiry check_google_domain check_cname verify_email lookup_mx segment_esp plan_from_list plan_infrastructure quote_inboxes get_diagnostic_playbook expand_spintax generate_unsubscribe check_email_authentication check_domain_reputation check_tracking_domain check_bulk_sender_requirements analyze_headers analyze_email_html analyze_dmarc_report analyze_cold_email audit_campaign analyze_bounces analyze_microsoft_headers preview_inbox generate_dns_records plan_rotation plan_verification_waterfall
Set it up
Cursor (mcp.json):
{
"mcpServers": {
"deliverability-tools": {
"url": "https://warminboxes.com/mcp"
}
}
}Claude Code:
claude mcp add --transport http deliverability-tools https://warminboxes.com/mcpClaude and ChatGPT: add the URL as a custom connector. See the setup guide.
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