All servers · Email & messaging · Cloud & networking · Payments & accounting

InboxGuards Email Check

com.inboxguardstest.api/email · v1.2.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	tools
Tool definitions	4 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Check emails before you send, and get a $1 SPF/DKIM/DMARC fix plan for your domain. Pay per call.

streamable-http · https://api.inboxguardstest.com/mcp

claude mcp add --transport http email https://api.inboxguardstest.com/mcp

{
  "mcpServers": {
    "email": {
      "url": "https://api.inboxguardstest.com/mcp"
    }
  }
}

validate_email
Free. Check the syntax of an email address offline and get the normalized address and domain, before paying for check_email_address. No DNS lookup, no network request, no payment.
pricing
Free. Return the price of check_email_address (and of the HTTP-only email test report), the payment network (Base) and the receiving address. No input, no network request, no payment.
check_email_address
Check one email address before you send to it: syntax, whether the domain accepts mail (MX, null MX or implicit A record), a disposable-domain flag (public CC0 list of about 9,900 domains), a role-account flag (info@, support@, noreply@...) and a free-provider flag. Returns a verdict of ok, risky or
email_fix_plan
Get an email security fix plan for one domain: the exact SPF, DKIM and DMARC DNS records to publish (create / replace / keep, record name, value and why), in order, plus click-path steps for the domain's DNS host (Cloudflare, GoDaddy, Route 53, Namecheap, Squarespace/Google, Vercel and others). Read

Website · JSON · Text for agents · Registry updated 2026-10-14