Free, no login: verify an email address, check SPF/DKIM/DMARC, explain SMTP errors, build SPF/DMARC. Connect the official Couryo free email tools MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http couryo-free-email-tools https://mcp.couryo.com/toolsRun in your terminal, then restart Claude Code.
Couryo free email tools · https://mcp.couryo.com/tools
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “verify_email”: Checks one email address without sending anything: format, typo in big providers ("gmail.com.br" → "gmail.com", "hotmial.com"), disposable i.”
“Use “verify_emails”: Batch of verify_email: the same checks for up to 100 addresses at once, one verdict each (valid, risky, invalid) plus the totals. Run it bef.”
“Use “check_domain_dns”: Checks the email setup of any domain: SPF (one record, ending, the 10 DNS lookup limit), DKIM on the common selectors (or dkim_selector), DM.”
“Use “explain_smtp_error”: Explains a bounce or SMTP error text ("550 5.7.515 Access denied", "452 4.2.2 mailbox full") in plain words: hard (the address does not work.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Couryo free email tools holds up.
Operated by Couryo free email tools (couryo.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If Couryo free email tools adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose Couryo free email tools in the gate directory. No sign-in needed.
Couryo free email tools's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
verify_email — Checks one email address without sending anything: format, typo in big providers ("gmail.com.br" → "gmail.com", "hotmial.com"), disposable i
verify_emails — Batch of verify_email: the same checks for up to 100 addresses at once, one verdict each (valid, risky, invalid) plus the totals. Run it bef
check_domain_dns — Checks the email setup of any domain: SPF (one record, ending, the 10 DNS lookup limit), DKIM on the common selectors (or dkim_selector), DM
explain_smtp_error — Explains a bounce or SMTP error text ("550 5.7.515 Access denied", "452 4.2.2 mailbox full") in plain words: hard (the address does not work
generate_spf — Builds one SPF record (TXT at the domain) from the services that send for it: includes, IPv4 and IPv6, mx and a. Starts with ~all (softfail)
generate_dmarc — Builds one DMARC record (TXT at _dmarc.<domain>). Start with policy none and a report address (rua), read the reports, then move to quaranti
https://mcp.couryo.com/toolsYes — Couryo free email tools operates its own remote MCP server at mcp.couryo.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick Couryo free email tools in the directory. No account or sign-in is needed. From then on, Couryo free email tools's tools are available in every client you've connected to gate.
No. Couryo free email tools runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect Couryo free email tools in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up Couryo free email tools in: Claude · Claude Code · ChatGPT · Cursor · VS Code
One URL. All MCPs. Full control. Free to start.
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