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Is Email Verifier (SMTP, MX, Catch-All) reliable?

Private (key required) Email Verifier (SMTP, MX, Catch-All) answers but requires credentials, so Faceabot cannot test it anonymously. It is not counted as failing.

Last check: 2026-10-21 05:00 UTC · answered in 1775 ms · remote (no install)

Proven alternatives that work right now

MailValid Email Verification Reliable (measured) · 100%
Verify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk. · https://mailvalid.io/mcp/

ClearBounce Email Verification Reliable (measured) · 100%
Verify email addresses in real time and find business email addresses with live mailbox checks. · https://clearbounce.net/mcp

BillionVerify Reliable (measured) · 100%
Email verification for AI agents: verify single or bulk emails, check credits and history. · https://mcp.billionverify.com/mcp

Picked from Faceabot's live measurements. Or let Faceabot choose: GET https://faceabot.com/resolve?need=…

En français : Accès privé (clé requise). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Bulk email verification: live SMTP mailbox check, MX, catch-all, disposable and role detection.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website
Connect your agent
{
  "mcpServers": {
    "email-verifier": {
      "url": "https://mcp.apify.com/?tools=sumitr_mardy/email-verifier"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.sumitrmardy/email-verifier"} on https://faceabot.com/api/mcp.
Does it actually do the job?

Not tested with a real task yet. Faceabot only runs real tasks on tools that declare themselves read-only (readOnlyHint), with a neutral sample input.

Faceabot measurements
WhenAnswersReal taskLatency
2026-10-21 05:00 UTC❌ auth_required1775 ms
Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

More from the same publisher

Google Ads Monitor Private (key required)

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MCP endpoint : https://mcp.apify.com/?tools=sumitr_mardy/google-ads-monitor · website · measurements and details
PDF Text Extractor Private (key required)

Text from PDF links, OCR for scanned pages. One flat row per URL, never null. Billed on success.

MCP endpoint : https://mcp.apify.com/?tools=sumitr_mardy/pdf-text-extractor · website · measurements and details
Website Contact Finder Private (key required)

Find emails, phone numbers and social profiles on a list of company websites. One row per domain.

MCP endpoint : https://mcp.apify.com/?tools=sumitr_mardy/website-contact-finder · website · measurements and details

Find tools similar to Email Verifier (SMTP, MX, Catch-All) →

Publisher of Email Verifier (SMTP, MX, Catch-All)?

Show your measured reliability on your README or website:

Faceabot reliability badge for Email Verifier (SMTP, MX, Catch-All)

[![Measured by Faceabot](https://faceabot.com/badge/io.github.sumitrmardy/email-verifier.svg)](https://faceabot.com/tools/io.github.sumitrmardy/email-verifier)
Data in JSON: /api/catalog?id=io.github.sumitrmardy/email-verifier · Stop probes: POST /api/reliability/opt-out

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