# Email Validation API — Syntax, MX, Disposable, Score (`mrlarryjohnson/email-validator-api`) Actor Validate email lists without sending a thing: syntax, DNS/MX existence, disposable-domain detection, role-based and free-provider flags, 0-100 deliverability score. DNS failures are free, never faked. - **URL**: https://apify.com/mrlarryjohnson/email-validator-api.md - **Developed by:** [Larry Johnson](https://apify.com/mrlarryjohnson) (community) - **Categories:** Developer tools, Lead generation, Marketing - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks - **User rating**: No ratings yet ## Pricing from $1.00 / 1,000 email checkeds This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## Email Validation API — clean your lists without sending a thing Feed it a list, get back a verdict per address: **valid / risky / disposable / invalid / unknown**, with a 0–100 deliverability score and the exact reasons. No emails are ever sent. Pay per address checked; our own failures are free. ### What's checked | Check | Meaning | |---|---| | `syntaxValid` | Structurally a real address | | `domainExists` / `hasMx` | DNS says the domain exists and accepts mail (MX, with A fallback) | | `disposable` | Throwaway domains incl. their subdomains (mailinator, 10minutemail, yopmail, ...) — covers common providers; obscure ones can slip through | | `roleBased` | info@, sales@, admin@ — weak targets for outreach | | `freeProvider` | gmail/yahoo/outlook etc. — fine for B2C, weak signal for B2B | | `score` + `verdict` | 0–100 confidence and the bottom line | ### Honest by design - **No SMTP-handshake theater.** From shared cloud IPs, SMTP probing is widely blocked and greylisted — services that claim it from a datacenter are selling you noise. We only run checks that are trustworthy from where this actually runs. - **DNS failures are never faked.** If our resolver times out, you get `verdict: "unknown"` with `dnsError` set — and that row is **not billed**. A timeout is our problem, not proof your lead is bad. - **Batched delivery:** results are pushed and billed every 250 rows, so even an interrupted run delivers what it completed — never all-or-nothing. - **Dedup-friendly:** domain lookups are cached per run, so 5,000 @gmail.com rows cost one DNS query. ### Typical uses Clean a lead list before a campaign (bounces kill sender reputation), validate signups at the edge, or audit a purchased list before you pay for it twice. ### Output example ```json { "email": "jane.doe@gmail.com", "verdict": "valid", "score": 100, "syntaxValid": true, "domainExists": true, "hasMx": true, "disposable": false, "roleBased": false, "freeProvider": true } ```` Built by the maker of the [whale-tracking and MCP suite](https://apify.com/mrlarryjohnson) — same rules everywhere: fail-loud integrity, errors never billed. # Actor input Schema ## `emails` (type: `array`): The email addresses to validate. One per line in the editor (or pass an array / a comma- or newline-separated string via API). ## `maxEmails` (type: `integer`): Safety cap on how many emails one run will process. ## Actor input object example ```json { "emails": [ "jane.doe@gmail.com", "info@apify.com", "x@mailinator.com" ], "maxEmails": 10000 } ``` # Actor output Schema ## `results` (type: `string`): All records produced by this run as JSON items. # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "emails": [ "jane.doe@gmail.com", "info@apify.com", "x@mailinator.com" ] }; // Run the Actor and wait for it to finish const run = await client.actor("mrlarryjohnson/email-validator-api").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = { "emails": [ "jane.doe@gmail.com", "info@apify.com", "x@mailinator.com", ] } # Run the Actor and wait for it to finish run = client.actor("mrlarryjohnson/email-validator-api").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{ "emails": [ "jane.doe@gmail.com", "info@apify.com", "x@mailinator.com" ] }' | apify call mrlarryjohnson/email-validator-api --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=mrlarryjohnson/email-validator-api", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "Email Validation API — Syntax, MX, Disposable, Score", "description": "Validate email lists without sending a thing: syntax, DNS/MX existence, disposable-domain detection, role-based and free-provider flags, 0-100 deliverability score. DNS failures are free, never faked.", "version": "0.1", "x-build-id": "54u9GDc3cxwOSN2qs" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/mrlarryjohnson~email-validator-api/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-mrlarryjohnson-email-validator-api", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/mrlarryjohnson~email-validator-api/runs": { "post": { "operationId": "runs-sync-mrlarryjohnson-email-validator-api", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/mrlarryjohnson~email-validator-api/run-sync": { "post": { "operationId": "run-sync-mrlarryjohnson-email-validator-api", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "properties": { "emails": { "title": "Emails to validate", "type": "array", "description": "The email addresses to validate. One per line in the editor (or pass an array / a comma- or newline-separated string via API).", "items": { "type": "string" } }, "maxEmails": { "title": "Max emails per run", "minimum": 1, "maximum": 100000, "type": "integer", "description": "Safety cap on how many emails one run will process.", "default": 10000 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```