Bulk Email Deliverability & SMTP Verification

Check email addresses for syntax, MX records, disposable and role-based domains, and optionally SMTP mailbox existence and catch-all behavior, with a verdict and confidence score per address.

Open in Apify Store$0.99 / 1K on Free

Short answer

Bulk Email Deliverability & SMTP Verification is an Apify Store Actor that returns 25 published output fields, including email, verdict, confidence, riskLevel. It lists $0.99 per 1,000 results on the Free plan (pay per event), $0.49 on the Business plan. It takes 14 input settings, none required. Last updated Oct 31, 2026.

From the public Store listing and published build schema, synced 2026-11-12.
AutomationDeveloper toolsLead generation

What it returns

25 fields from the published dataset schema. Export as JSON, CSV or Excel, or read the dataset through the Apify API.

  • email
  • verdict
  • confidence
  • riskLevel
  • recommendedAction
  • mxProvider
  • didYouMean
  • reason
  • normalizedEmail
  • sourceData
  • checks
  • mxHost
  • mxRecords
  • aRecordFallback
  • domainExists
  • isAlias
  • plusTag
  • smtpAttempted
  • smtpVerifiable
  • smtpCode
  • smtpMessage
  • catchAllConfidence
  • catchAllMethod
  • domainHealth
  • verifiedAt

Input

SettingTypeRequiredDefaultWhat it does
emails array No – One email address per item. You can paste a list here or use the text box below; if both are filled, the actor verifies both. Duplicates are removed case-insensitively.
emailsText string No – Paste a list separated by new lines, commas, semicolons or spaces. Useful for CSV exports and email lists.
datasetId string No – Optional Apify dataset ID. The actor reads one email per item from datasetEmailField, verifies those addresses, and can carry the original columns into each record.
datasetEmailField string No email Column name that holds the email address when datasetId is set.
includeSourceFields boolean No false When reading from a dataset, include the original row in sourceData so you can join the verification result back to your CRM export.
verificationDepth string No standard Basic checks syntax, MX records and the A/AAAA fallback. Standard adds disposable, role-based, free-provider and domain-health checks. Deep adds a best-effort SMTP mailbox probe and catch-all detection.
concurrency integer No 10 How many addresses are checked in parallel. Higher is faster, but mail servers may rate-limit SMTP probes.
maxEmails integer No 10000 Upper bound on unique addresses to verify in one run. Anything beyond this is skipped and reported in the run summary.
maxEmailsPerDomain integer No 100 Cap on addresses verified for the same domain. Extra addresses get an 'unknown' record explaining the cap instead of hammering one mail server.
smtpTimeout number No 10 Connect and response timeout for each SMTP probe. Use a lower value for fast scans and a higher value for slow mail servers.
Show the other 4 settings
SettingTypeRequiredDefaultWhat it does
maxRetries integer No 2 Extra attempts for temporary DNS, connection and SMTP 4xx failures, using exponential backoff.
checkSmtp boolean No false Run the best-effort SMTP mailbox probe even at basic or standard depth. Deep depth already includes it.
checkCatchAll boolean No false Probe a random address to detect catch-all domains. Implies SMTP probing. Deep depth already includes it.
includeDomainHealth boolean No true Add SPF, DMARC policy and common DKIM selector findings for each domain at standard or deep depth.

Example input

Built from the input form's published example values and defaults.

{
  "emails": [
    "test@gmail.com"
  ],
  "datasetEmailField": "email",
  "includeSourceFields": false,
  "verificationDepth": "basic",
  "concurrency": 10,
  "maxEmails": 10000,
  "maxEmailsPerDomain": 100,
  "smtpTimeout": 10,
  "maxRetries": 2,
  "checkSmtp": false,
  "checkCatchAll": false,
  "includeDomainHealth": true
}

Run it from code or an AI agent

The same run through the Apify API, with the example input. You need an Apify API token; the run is billed to your account at the Store price.

Python

from apify_client import ApifyClient

client = ApifyClient("<YOUR_APIFY_TOKEN>")
run_input = {
    "emails": [
        "test@gmail.com"
    ],
    "datasetEmailField": "email",
    "includeSourceFields": False,
    "verificationDepth": "basic",
    "concurrency": 10,
    "maxEmails": 10000,
    "maxEmailsPerDomain": 100,
    "smtpTimeout": 10,
    "maxRetries": 2,
    "checkSmtp": False,
    "checkCatchAll": False,
    "includeDomainHealth": True
}

run = client.actor("nimbryxo-studio/bulk-email-deliverability-and-smtp-verification").call(run_input=run_input)
if run is None:
    raise RuntimeError("The Actor run was not found.")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

pip install apify-client

JavaScript

import { ApifyClient } from "apify-client";

const client = new ApifyClient({ token: "<YOUR_APIFY_TOKEN>" });
const input = {
    "emails": [
        "test@gmail.com"
    ],
    "datasetEmailField": "email",
    "includeSourceFields": false,
    "verificationDepth": "basic",
    "concurrency": 10,
    "maxEmails": 10000,
    "maxEmailsPerDomain": 100,
    "smtpTimeout": 10,
    "maxRetries": 2,
    "checkSmtp": false,
    "checkCatchAll": false,
    "includeDomainHealth": true
};

const run = await client.actor("nimbryxo-studio/bulk-email-deliverability-and-smtp-verification").call(input);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
console.log(items);

npm install apify-client

cURL

curl -X POST "https://api.apify.com/v2/actors/nimbryxo-studio~bulk-email-deliverability-and-smtp-verification/run-sync-get-dataset-items"   -H "Authorization: Bearer $APIFY_TOKEN"   -H "Content-Type: application/json"   -d '{"emails":["test@gmail.com"],"datasetEmailField":"email","includeSourceFields":false,"verificationDepth":"basic","concurrency":10,"maxEmails":10000,"maxEmailsPerDomain":100,"smtpTimeout":10,"maxRetries":2,"checkSmtp":false,"checkCatchAll":false,"includeDomainHealth":true}'

Waits for the run and returns the dataset items (runs over 300 seconds return HTTP 408; start an async run instead).

MCP (AI agents)

{
  "mcpServers": {
    "apify": {
      "url": "https://mcp.apify.com?tools=nimbryxo-studio/bulk-email-deliverability-and-smtp-verification",
      "headers": {
        "Authorization": "Bearer <YOUR_APIFY_TOKEN>"
      }
    }
  }
}

Adds this Actor as a tool in an MCP client that takes a remote server URL (Cursor, VS Code, Claude Code) through Apify's hosted MCP server. OAuth sign-in also works without the header. Clients that only start local servers can wrap the URL with npx mcp-remote.

What a run costs

The result rate falls on higher Apify plans. Each figure is the published per-result rate times the number of results.

Apify planPer 1,00010,000 results100,000 results
Free plan$0.99$9.90$99
Starter plan$0.82$8.20$82
Scale plan$0.66$6.60$66
Business plan$0.49$4.90$49
  • Every run also has a start event, charged per GB of memory (minimum one): $0.10 on Free, $0.03 on Business. At its default memory of 4 GB a run starts at $0.40 on Free. Fewer, larger runs keep this small.
  • The Free plan includes $5 of monthly usage (Apify pricing, checked 2026-11-11); at the Free rate that covers at most about 5,050 results, less start events and platform usage.
  • Worked example: 10,000 results in one run on the Free plan cost $10.30 ($9.90 for results + $0.40 start), plus Apify platform usage (compute), billed separately by Apify.
  • Pay per event. Platform usage (compute) is billed by Apify on top of the event prices. Compare other tools in the cost estimator.

What people use it for

  • verify email addresses
  • assess email deliverability

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Questions people ask

How much does Bulk Email Deliverability & SMTP Verification cost?

The published result rate depends on your Apify plan: $0.99 per 1,000 on Free, $0.82 per 1,000 on Starter, $0.66 per 1,000 on Scale, $0.49 per 1,000 on Business. So 10,000 results cost about $9.90 on the Free plan and $4.90 on Business, plus a start fee of $0.10 per run per GB of memory on Free. Platform usage is billed separately.

What data does Bulk Email Deliverability & SMTP Verification return?

Its published output schema lists 25 fields: email, verdict, confidence, riskLevel, recommendedAction, mxProvider, didYouMean, reason, normalizedEmail, sourceData, checks, mxHost, and 13 more. A listed field is not guaranteed to be filled in every row.

What input does Bulk Email Deliverability & SMTP Verification need?

No input is strictly required; the defaults run as is. Common settings: emails, emailsText, datasetId, datasetEmailField, includeSourceFields, verificationDepth.

How do I run Bulk Email Deliverability & SMTP Verification from Python or the API?

Use the Apify API client: in Python, ApifyClient(token).actor("nimbryxo-studio/bulk-email-deliverability-and-smtp-verification").call(run_input=...), then read the run's default dataset (run.default_dataset_id); in JavaScript the same call is client.actor("nimbryxo-studio/bulk-email-deliverability-and-smtp-verification").call(input). Without a client, POST the input JSON to https://api.apify.com/v2/actors/nimbryxo-studio~bulk-email-deliverability-and-smtp-verification/run-sync-get-dataset-items with your API token. Ready-to-paste code with the example input is on this page.

Sources

Actor updated 2026-10-31 Data synced 2026-11-12
Cite this page

Scraper Finder. "Bulk Email Deliverability & SMTP Verification." https://scraperfinder.com/catalogue/bulk-email-deliverability-and-smtp-verification/ (data checked 2026-11-12).

Run Bulk Email Deliverability & SMTP Verification

$0.99 per 1,000 results. Paste the example input above, set your target query, then export the dataset.

Open in Apify Store