Bulk Email Verifier

Verify up to 500 email addresses for syntax, MX, disposable, role-based, and conservative SMTP reachability signals. Get one structured Dataset record per unique input address, with a 0–100 score and valid / risky / invalid status. Pay only for saved, syntax-valid results that complete the email-verified event; failed, duplicate, syntax-invalid, and invalid results are not charged.

Input

emails is required and accepts either a JSON string array or CSV/newline-delimited text. timeoutMs is optional and applies to MX and SMTP connection checks.

{
  "emails": [
    "person@gmail.com",
    "alerts@mailinator.com",
    "not-an-email"
  ],
  "timeoutMs": 1500
}

CSV text is also accepted:

email
person@gmail.com
alerts@mailinator.com
not-an-email

The maximum is 500 unique addresses. Duplicate inputs are emitted once and are not charged.

Output

Each unique input address produces at most one Dataset record:

Field	Meaning
email	Trimmed input address
isValidSyntax	Conservative syntax check
hasMx	Whether the domain returned at least one MX record
isDisposable	Match against the built-in disposable-domain baseline
isRoleBased	Common role mailbox prefix such as support@ or sales@
score	0–100 heuristic score, not a delivery guarantee
status	valid, risky, or invalid
checkedAt	ISO-8601 check timestamp
smtpReachable	true, false, or null; conservative TCP connection signal

Verification and billing boundaries

• DNS MX lookup uses Node.js built-in DNS resolution. No paid enrichment API is used.
• SMTP checking opens a short TCP connection to the preferred MX host only. It does not send RCPT TO, does not send an email, and does not claim that a mailbox can receive mail.
• SMTP timeout or connection failure becomes an unknown signal and does not crash the run.
• A Dataset write happens before Actor.charge({ eventName: "email-verified", count: 1 }).
• The implementation checks chargedCount. If the event is unavailable, partially fulfilled, or the run limit is reached, processing stops safely to avoid continuing with uncharged billable results.
• The code constant is EVENT_PRICE_USD = 0.005. Configure the matching PPE event in Apify Console only after human approval; this repository does not publish or change Console pricing.

Local checks

npm install
npm run check
npm test

For a local integration run without Apify PPE configuration, set EMAIL_VERIFIER_LOCAL_TEST=1. This test-only flag simulates one successful charge response; it is not set by the Actor in production.

Scope

This Actor contains no SEC, filing-monitor, social-network, LinkedIn, Finder, or dashboard code. The disposable-domain and role-prefix lists are deliberately small baselines; valid is not an SMTP delivery guarantee.

Operational stop lines

• Success line: within 7 days after human-approved publication, at least one external paid run occurs and the result is net profitable.
• Withdrawal line: if paid runs remain 0 after 14 days, stop candidate.
• Until those observations exist, do not infer product demand or expand the feature set from local test runs.