email-check

ai.kaiv/email-checkVersion 1.0.0

Email posture for any domain: can it receive mail, can it be spoofed? MX, SPF and DMARC.

Status

Responds194 msNov 14, 2026, 13:33 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 13:33 UTC
Latency: 194 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://api.kaiv.ai/api/bridge/mcp/email-check-b6ab5250Responds194 msNov 14, 2026, 13:33 UTC

No sign-in

Claude Code

claude mcp add --transport http email-check https://api.kaiv.ai/api/bridge/mcp/email-check-b6ab5250

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: email-check
Remote MCP server URL: https://api.kaiv.ai/api/bridge/mcp/email-check-b6ab5250

Cursor

{
  "mcpServers": {
    "email-check": {
      "url": "https://api.kaiv.ai/api/bridge/mcp/email-check-b6ab5250"
    }
  }
}

VS Code

code --add-mcp '{"name":"email-check","type":"http","url":"https://api.kaiv.ai/api/bridge/mcp/email-check-b6ab5250"}'

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Tools

4 tools

Tools of email-check
	Description		Read-only	Idempotent	Open world
`check_email_domain`Full email posture for a domain: can it receive mail, and can it be spoofed? Runs MX, SPF and DMARC lookups together and returns a plain-language verdict alongside the raw records: can_receive_mail, spoofable, and a list of specific findings. Use this as the default check before emailing an unfamiliar domain, when judging whether inbound mail claiming to be from a domain could be forged, or when auditing your own domains. Prefer this over the single-record tools unless you already know which record you need.	Full email posture for a domain: can it receive mail, and can it be spoofed? Runs MX, SPF and DMARC lookups together and returns a plain-language verdict alongside the raw records: can_receive_mail, spoofable, and a list of specific findings. Use this as the default check before emailing an unfamiliar domain, when judging whether inbound mail claiming to be from a domain could be forged, or when auditing your own domains. Prefer this over the single-record tools unless you already know which record you need.	No	Yes	Yes	Yes
`get_dmarc_record`DMARC record, policy, and whether it actually protects. Returns the DMARC TXT record at _dmarc.<domain>, its policy (none / quarantine / reject), the percentage it applies to, and whether that policy protects against spoofing. Also flags the case of MULTIPLE DMARC records, which RFC 7489 requires receivers to treat as no policy at all — a domain in that state is unprotected however strict its records look. A policy of "none" is monitoring only and does not stop forged mail. Use when assessing whether mail claiming to be from a domain can be trusted.	DMARC record, policy, and whether it actually protects. Returns the DMARC TXT record at _dmarc.<domain>, its policy (none / quarantine / reject), the percentage it applies to, and whether that policy protects against spoofing. Also flags the case of MULTIPLE DMARC records, which RFC 7489 requires receivers to treat as no policy at all — a domain in that state is unprotected however strict its records look. A policy of "none" is monitoring only and does not stop forged mail. Use when assessing whether mail claiming to be from a domain can be trusted.	No	Yes	Yes	Yes
`get_mx_records`Mail exchanger records for a domain. Returns the MX hosts in priority order and whether any exist. A domain with no MX records cannot receive mail, so sending to it will bounce. Use when you only need deliverability and not spoofing posture; use check_email_domain for the full picture.	Mail exchanger records for a domain. Returns the MX hosts in priority order and whether any exist. A domain with no MX records cannot receive mail, so sending to it will bounce. Use when you only need deliverability and not spoofing posture; use check_email_domain for the full picture.	No	Yes	Yes	Yes
`get_spf_record`SPF record and how strict it is. Returns the SPF TXT record, the qualifier on its `all` mechanism (fail / softfail / neutral / pass) and what that means in practice, plus whether more than one SPF record exists — which receivers treat as an error, leaving the domain unprotected. Use when diagnosing why mail from a domain is being rejected or marked.	SPF record and how strict it is. Returns the SPF TXT record, the qualifier on its `all` mechanism (fail / softfail / neutral / pass) and what that means in practice, plus whether more than one SPF record exists — which receivers treat as an error, leaving the domain unprotected. Use when diagnosing why mail from a domain is being rejected or marked.	No	Yes	Yes	Yes

Details

Registry status: Active
Published: Aug 21, 2026
Updated: Aug 21, 2026
Website: Not given
Repository: Not given
Categories (suggested): Communication SecuritySuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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