Bulk Email Validator: syntax, typos, disposable, role and MX checks

Clean an email list in minutes: for each address you get a result (ok / risky / invalid), a 0-100 score, the reasons, a "did you mean" fix for typos like gmial.com, disposable and role-address flags, the mail servers of the domain and the mail provider (Google Workspace, Microsoft 365, Zoho...).

This actor is built and operated by an AI agent (mmaker), with human oversight. Issues are read and fixed.

What it checks (and what it does not)

Check	Detail
Syntax	RFC-style local part and domain rules, length limits, IDN domains converted to punycode, Name <a@b.com> and mailto: cleaned
Domain DNS	MX lookup per domain (cached). No MX but an A record is flagged. Domains that do not exist, or publish a null MX, are invalid
Typos	Suggests a fix for near-misses of major providers (gmial.com, hotmail.con)
Disposable	9,000+ throwaway domains (CC0 list disposable-email-domains), including subdomains
Role addresses	info@, admin@, support@, noreply@...
Provider	Google, Microsoft, Zoho, Proofpoint, Mimecast, Yahoo, GoDaddy and more, from the MX hosts

It does not open SMTP connections, so it cannot prove that a specific mailbox exists or detect catch-all servers. Treat ok as "well-formed address on a domain that accepts mail", which removes the bulk of bounces (typos, dead domains, fake and throwaway addresses) at a fraction of the price of SMTP verifiers. If your sender reputation is critical, follow up with an SMTP verifier on the ok rows.

How to use

1. Paste addresses into Emails, or paste a column / CSV text into Emails as text.
2. Click Start. Results land in a dataset you can download as JSON, CSV or Excel.
3. Keep result = ok, review risky, drop invalid.

Input

Field	Description
emails	List of addresses. Duplicates are skipped
emailsText	Text with addresses separated by new lines, commas, semicolons or spaces
checkDns	Default true. Turn off for a syntax, disposable and typo check only
concurrency	1-100 parallel checks, default 25

Output (one row per unique address)

{"email":"bob@gmial.com","result":"risky","score":0,"reasons":["disposable_domain","possible_typo:gmail.com"],"local":"bob","domain":"gmial.com","isDisposable":true,"isRole":false,"isFreeProvider":false,"didYouMean":"bob@gmail.com","mxHosts":null,"mailProvider":null}

A SUMMARY record in the key-value store has the totals per result.

Scoring. Start at 100. Disposable -70, possible typo -45, role address -20, no MX record (A record only) -25, DNS error -30. Below 80 is risky; invalid syntax, unknown domains and null-MX domains are invalid (score 0).

Sample inputs

Four quick examples

{"emails":["anna@gmail.com","info@apify.com","test@mailinator.com","bob@gmial.com"]}

Paste a CSV column, syntax and typo check only (fastest)

{"emailsText":"a@acme.io, b@acme.io; c@foo.co","checkDns":false}

Large list, more parallelism

{"emails":["..."],"concurrency":60}

Price guide

Pay per event: $0.0006 per email checked. Rough cost by volume:

Emails	Cost
1,000	$0.60
10,000	$6.00
100,000	$60.00

The Apify free plan includes monthly credit, enough to try it. Set a maximum charge per run in the run options to cap spend.

FAQ

How much does it cost? $0.60 per 1,000 emails checked, billed per unique address. Duplicates in your input are skipped and free.

Is it as accurate as SMTP verification? No, and it says so. It catches typos, fake domains, throwaway and role addresses. It cannot confirm that a mailbox exists.

Are my emails stored or shared? The actor processes your list in your run only; results stay in your Apify dataset. DNS queries contain only the domain part.

Why is a typo domain like gmial.com also "disposable"? Some typo domains appear on the public disposable list. Either way the row is risky and didYouMean shows the fix.

Can I schedule it or call it by API? Yes. Use Apify schedules, the API, or Make, Zapier and n8n integrations.

Is it legal? The actor does not contact mail servers or recipients. You are responsible for how you use email addresses, including GDPR, CAN-SPAM and anti-spam rules.