WarmInboxes Free Deliverability Tools MCP Tools

• check_deliverability Read-only

  check deliverability

• check_spf Read-only

  check spf

• check_dkim Read-only

  check dkim

• check_dmarc Read-only

  check dmarc

• check_bimi Read-only

  check bimi

• check_mta_sts Read-only

  check mta sts

• check_ssl Read-only

  check ssl

• check_dns Read-only

  check dns

• lookup_txt Read-only

  lookup txt

• check_rdns Read-only

  check rdns

• check_blacklist Read-only

  check blacklist

• check_surbl Read-only

  check surbl

• check_nameservers Read-only

  check nameservers

• check_domain_expiry Read-only

  check domain expiry

• check_google_domain Read-only

  check google domain

• check_cname Read-only

  check cname

• verify_email

  verify email

• lookup_mx Read-only

  lookup mx

• segment_esp

  segment esp

• plan_from_list

  plan from list

• plan_infrastructure

  plan infrastructure

• expand_spintax

  expand spintax

• generate_unsubscribe

  generate unsubscribe

• check_email_authentication Read-only

  check email authentication

• check_domain_reputation Read-only

  check domain reputation

• check_tracking_domain Read-only

  check tracking domain

• check_bulk_sender_requirements Read-only

  check bulk sender requirements

• analyze_headers

  analyze headers

• analyze_email_html

  analyze email html

• analyze_dmarc_report

  analyze dmarc report

• analyze_cold_email

  analyze cold email

• audit_campaign

  audit campaign

• analyze_bounces

  analyze bounces

• analyze_microsoft_headers

  analyze microsoft headers

• preview_inbox

  preview inbox

• generate_dns_records

  generate dns records

• plan_rotation

  plan rotation

• plan_verification_waterfall

  plan verification waterfall

• clean_csv

  clean csv

• convert_csv

  convert csv

• combine_csvs

  combine csvs

• check_suppression Read-only

  check suppression

• check_spamhaus_dbl Read-only

  check spamhaus dbl

• check_burned_inbox Read-only

  check burned inbox

• write_cold_email Mutating

  write cold email

• find_lead_lists Read-only

  find lead lists

• find_tools Read-only

  find tools

• find_resources Read-only

  find resources

• read_resource Read-only

  read resource

• get_pricing Read-only

  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.