📩 Email Deliverability Checker

What you get: one row per email you submit with an RFC syntax check, the domain's live MX records, a disposable-domain flag and a 0–100 deliverability score — no message is ever sent.

Sample output from a real run (2026-10-18, default input, 3 rows):

email	syntaxOk	mxValid	isDisposable	score	isValid
test@gmail.com	true	true	false	100	true
user@mailinator.com	true	true	true	80	false
bad@@invalid	false	null	null	0	false

That run was 3 result rows × $0.003 = $0.009 (there is no separate start fee).

Run on Apify

Paid first run ≈ USD 0.003/row (1 email). Keep reports, exports, and movement options off for the first run. Open Console Input (deep link above) and run this JSON.

{
  "emails": [
    "test@gmail.com"
  ],
  "checkMx": true,
  "checkDisposable": true,
  "dryRun": false
}

Paste email and Start.

Audit user-supplied email data by checking syntax, DNS MX records, and known disposable-domain patterns. The actor never sends a message and does not discover, enrich, or acquire addresses.

The validation process goes beyond basic regex checks. It evaluates strict RFC syntax compliance, executes live DNS queries to confirm active MX records, and detects temporary or disposable email providers commonly used for spam or trial abuse. The final output provides a clean 0–100 deliverability score for each submitted email, alongside specific flags for syntax errors and domain health issues.

Data engineers can use the results for consented database maintenance, migration validation, and internal data-quality checks. A positive result is a technical signal only and does not prove mailbox ownership, consent, or permission to send messages.

Lead Enrichment Pack — 3-step workflow

Step	Actor	Job
1	CSV Cleaner & Deduplication Tool	Prepare a consented, user-supplied data table
2	Email Deliverability Checker ← you are here	Validate emails: syntax, MX records, disposable detection, deliverability score
3	Phone Number Validator	Normalize and validate phone numbers with type detection (mobile / landline / VoIP)

Store Quickstart

Pick the template that fits your workflow:

• Quickstart (5 Demo Emails) — run with a mixed set of valid, invalid, and disposable addresses to see the score in action
• Database migration audit — validate syntax and domain signals in an authorized export before import
• Sales Outreach Pre-Flight — validate a prospect list before launching a cold email sequence
• CRM Hygiene Audit — bulk-validate up to 1,000 addresses from an existing CRM export

Use with Apify MCP

Exact actor: taroyamada/email-deliverability-checker

Sample input JSON:

{
  "emails": [
    "test@gmail.com"
  ],
  "checkMx": true,
  "checkDisposable": true
}

Key Features

• 📧 Syntax validation — RFC-compliant email format check
• 🌐 DNS MX lookup — Verify domain has working mail exchangers
• 🗑️ Disposable detection — Block tempmail, guerrillamail, mailinator, 10minutemail
• 🎯 Deliverability score — 0-100 composite score per email
• ⚡ Bulk processing — Up to 1,000 emails per run
• 🔒 No sending required — Privacy-safe, nothing hits the inbox

Use Cases

Who	Why
Email marketers	Clean lists before bulk sends to protect sender reputation
Data operations	Audit consented records before a database migration
Growth teams	Verify signups to reduce fake/disposable accounts
SaaS platforms	Pre-validate emails at signup to block junk
CRM managers	Periodic list hygiene to remove invalid emails

Input

Field	Type	Default	Description
emails	string[]	(required)	Emails to validate (max 1000)
checkMx	boolean	true	DNS MX lookup
checkDisposable	boolean	true	Disposable domain check

Input Example

{
  "emails": ["user@example.com", "fake@10minutemail.com"],
  "checkMx": true,
  "checkDisposable": true
}

Input Examples

Example: Single email check

{
  "emails": [
    "test@gmail.com"
  ]
}

Example: Bulk pre-send hygiene

{
  "emails": [
    "test@gmail.com",
    "user@mailinator.com",
    "bad@@invalid"
  ],
  "checkMx": true,
  "checkDisposable": true
}

Example: Syntax and disposable check only (no DNS lookup)

{
  "emails": [
    "test@gmail.com",
    "user@mailinator.com"
  ],
  "checkMx": false
}

Output

One dataset row per submitted email.

Field	Type	Description
email	string	The address you submitted
isValid	boolean	true when syntax is valid, the domain has MX records and it is not a disposable domain
syntaxOk	boolean	RFC-style syntax check
mxValid	boolean or null	Whether the domain has MX records (null when syntax already failed)
mxRecords	string[]	MX records as "priority host" strings
isDisposable	boolean or null	Known disposable / temporary mail domain
domain	string or null	Domain part of the address
score	integer	0–100 deliverability score
checkedAt	timestamp	When the check ran

Output Example

Row from the real run above:

{
  "email": "test@gmail.com",
  "isValid": true,
  "syntaxOk": true,
  "mxValid": true,
  "mxRecords": [
    "10 alt1.gmail-smtp-in.l.google.com",
    "20 alt2.gmail-smtp-in.l.google.com",
    "30 alt3.gmail-smtp-in.l.google.com",
    "40 alt4.gmail-smtp-in.l.google.com",
    "5 gmail-smtp-in.l.google.com"
  ],
  "isDisposable": false,
  "domain": "gmail.com",
  "score": 100,
  "checkedAt": "2026-10-18T11:43:00.055Z"
}

API Usage

Run this actor programmatically using the Apify API. Replace YOUR_API_TOKEN with your token from Apify Console → Settings → Integrations.

cURL

curl -X POST "https://api.apify.com/v2/acts/taroyamada~email-deliverability-checker/run-sync-get-dataset-items?token=YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "emails": ["user@example.com", "fake@10minutemail.com"], "checkMx": true, "checkDisposable": true }'

Python

from apify_client import ApifyClient

client = ApifyClient("YOUR_API_TOKEN")
run = client.actor("taroyamada/email-deliverability-checker").call(run_input={
  "emails": ["user@example.com", "fake@10minutemail.com"],
  "checkMx": true,
  "checkDisposable": true
})

for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

JavaScript / Node.js

import { ApifyClient } from 'apify-client';

const client = new ApifyClient({ token: 'YOUR_API_TOKEN' });
const run = await client.actor('taroyamada/email-deliverability-checker').call({
  "emails": ["user@example.com", "fake@10minutemail.com"],
  "checkMx": true,
  "checkDisposable": true
});

const { items } = await client.dataset(run.defaultDatasetId).listItems();
console.log(items);

Tips & Limitations

• Run it on a consented list before an import or a send to drop syntax errors, dead domains and disposable addresses.
• isValid=false with isDisposable=true usually means a throwaway sign-up.
• The actor does not open an SMTP session, so it cannot tell whether a specific mailbox exists.
• Combine with Phone Validator for full lead-data quality scoring.

FAQ

Does this catch typos like gmial.com?

It checks MX validity — gmial.com has no MX records, so it's flagged invalid. Use the score field for confidence.

What score should I trust?

90+ is safe for sending. 70-90 is risky. Below 70 should be discarded or double opt-in'd.

Does it check if the inbox exists?

No — that requires SMTP handshake which can mark your sender as abusive. Not safe for bulk checking.

How often is the disposable domain list updated?

The embedded list covers 3,000+ known disposable providers. Updated with releases.

Does this verify individual email addresses?

It checks each address's syntax, its domain's MX records and whether the domain is disposable. It does not contact the mail server, so it cannot confirm that the mailbox itself exists.

Related Actors — Lead Enrichment Pack

This actor is Step 2 of the Lead Enrichment Pack:

Step	Actor	What it does
⬅ Step 1	CSV Cleaner & Deduplication Tool	Normalize an authorized CSV export before technical validation
➡ Step 3	📞 Phone Number Validator	E.164 normalization, type detection (mobile/landline/VoIP), 250+ countries

Related data-quality tools:

• Email Deliverability Portfolio Audit API — Audit SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, and sender-readiness signals across domain portfolios with executive summaries and remediation guidance.

Cost

Pay Per Event (current Store prices):

• Result row: $0.003 per row written to the default dataset (no separate start fee)

Example: 1,000 rows = 1,000 × $0.003 = $3.00

No subscription required — you only pay for what you use.

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