check_rdns — WarmInboxes Free Deliverability Tools MCP Tool Read-only
check_rdns
(check rdns) is one of 50 tools on the
WarmInboxes Free Deliverability Tools
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call check_rdns from your client
- Claude Code WarmInboxes Free Deliverability Tools check_rdns run in your project directory
- Claude Desktop WarmInboxes Free Deliverability Tools check_rdns ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor WarmInboxes Free Deliverability Tools check_rdns ~/.cursor/mcp.json
- VS Code WarmInboxes Free Deliverability Tools check_rdns .vscode/mcp.json
- Zed WarmInboxes Free Deliverability Tools check_rdns ~/.config/zed/settings.json
- Windsurf WarmInboxes Free Deliverability Tools check_rdns ~/.codeium/windsurf/mcp_config.json
- Cline WarmInboxes Free Deliverability Tools check_rdns ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI WarmInboxes Free Deliverability Tools check_rdns ~/.gemini/settings.json
- Grok WarmInboxes Free Deliverability Tools check_rdns .mcp.json (in your project root)
- ChatGPT WarmInboxes Free Deliverability Tools check_rdns Settings → Connectors → Advanced → Developer mode
- Claude.ai WarmInboxes Free Deliverability Tools check_rdns Settings → Connectors → Add custom connector
- LangChain WarmInboxes Free Deliverability Tools check_rdns pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http deliverability-tools https://warminboxes.com/mcpOther tools on this server
- check_deliverability
- check_spf
- check_dkim
- check_dmarc
- check_bimi
- check_mta_sts
- check_ssl
- check_dns
- lookup_txt
- 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
- 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
- clean_csv
- convert_csv
- combine_csvs
- check_suppression
- check_spamhaus_dbl
- check_burned_inbox
- write_cold_email
- find_lead_lists
- find_tools
- find_resources
- read_resource
- get_pricing
This list was read from the server itself, by connecting to it and calling tools/list on 22 October 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.