# Bulk Email Deliverability Checker (MX/SPF/DMARC/DKIM) (`weiseer/email-deliverability-checker`) Actor Bulk-check domains for email setup & authentication over DNS: MX + provider, SPF, DMARC policy, DKIM selectors, with a deliverability score. One JSON row per domain. - **URL**: https://apify.com/weiseer/email-deliverability-checker.md - **Developed by:** [wei seer](https://apify.com/weiseer) (community) - **Categories:** Developer tools, Lead generation, SEO tools - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks - **User rating**: No ratings yet ## Pricing Pay per usage This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-usage ## 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 Deliverability & DNS Auth Checker — Bulk MX / SPF / DMARC / DKIM Check a whole list of domains for email setup and authentication in one run — entirely over DNS, so it's fast, never blocked, and low-maintenance. One JSON row per domain with a deliverability score and verdict. Great for **email-list hygiene**, **deliverability audits**, **lead-list scoring**, and **security posture checks** across many domains at once. ### What you get per domain | Check | Fields | |---|---| | **MX** | `has_mx`, `mx_hosts`, `mx_provider` (Google Workspace / Microsoft 365 / Zoho / SES / Tencent / Alibaba / …) | | **SPF** | `spf_found`, `spf_record`, `spf_qualifier` (`-all` / `~all` / `?all`) | | **DMARC** | `dmarc_found`, `dmarc_policy` (`none` / `quarantine` / `reject`) | | **DKIM** | `dkim_selectors_found` (which common selectors publish a key) | | **Verdict** | `auth_score` (x/5), `verdict` (strong / partial / weak), `looks_disposable` | ### Input ```json { "domains": ["stripe.com", "user@acme.com", "https://globex.com"], "dkimSelectors": ["google", "default", "selector1", "k1"] } ```` Email addresses and URLs are reduced to the domain. Leave `domains` empty to run the built-in sample. ### Output (one item per domain) ```json { "domain": "github.com", "has_mx": true, "mx_provider": "Google Workspace", "spf_found": true, "spf_qualifier": "~all", "dmarc_found": true, "dmarc_policy": "reject", "dkim_selectors_found": ["google"], "auth_score": "5/5", "verdict": "strong", "looks_disposable": false } ``` Export as JSON/CSV/Excel or pull via the Apify API. ### Why DNS-only It reads MX, SPF/TXT, `_dmarc`, and `._domainkey` records — no SMTP probing (which mail servers block) and no scraping. That makes results stable and the Actor low-maintenance. Note: it verifies a domain's *email authentication setup*, not whether a specific mailbox exists. ### Pricing Pay per result: **$0.01 per domain checked**. No rental, no subscription. ### Pairs with - [Domain Intelligence](https://apify.com/weiseer/domain-intel-scraper) — DNS/WHOIS/SSL - [Website Metadata & Tech Profiler](https://apify.com/weiseer/website-metadata-tech-profiler) — HTTP metadata + tech + security headers *** Apache-2.0 · by [weiseer](https://github.com/weiseer) # Actor input Schema ## `domains` (type: `array`): Domains to check (e.g. example.com). Email addresses and URLs are accepted and reduced to the domain. ## `dkimSelectors` (type: `array`): Selectors to test at .\_domainkey.. Defaults to common ones (google, default, selector1, k1, …). ## `resolvers` (type: `array`): Public DNS resolver IPs. Defaults to Cloudflare + Google for deterministic results. ## Actor input object example ```json { "domains": [ "google.com", "github.com" ], "dkimSelectors": [ "google", "default", "selector1", "k1" ], "resolvers": [ "1.1.1.1", "8.8.8.8" ] } ``` # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "domains": [ "google.com", "github.com" ], "dkimSelectors": [ "google", "default", "selector1", "k1" ], "resolvers": [ "1.1.1.1", "8.8.8.8" ] }; // Run the Actor and wait for it to finish const run = await client.actor("weiseer/email-deliverability-checker").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${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 = { "domains": [ "google.com", "github.com", ], "dkimSelectors": [ "google", "default", "selector1", "k1", ], "resolvers": [ "1.1.1.1", "8.8.8.8", ], } # Run the Actor and wait for it to finish run = client.actor("weiseer/email-deliverability-checker").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 '{ "domains": [ "google.com", "github.com" ], "dkimSelectors": [ "google", "default", "selector1", "k1" ], "resolvers": [ "1.1.1.1", "8.8.8.8" ] }' | apify call weiseer/email-deliverability-checker --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=weiseer/email-deliverability-checker", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "Bulk Email Deliverability Checker (MX/SPF/DMARC/DKIM)", "description": "Bulk-check domains for email setup & authentication over DNS: MX + provider, SPF, DMARC policy, DKIM selectors, with a deliverability score. One JSON row per domain.", "version": "0.1", "x-build-id": "HFuECHTUrwILyUDdT" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/weiseer~email-deliverability-checker/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-weiseer-email-deliverability-checker", "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": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/weiseer~email-deliverability-checker/runs": { "post": { "operationId": "runs-sync-weiseer-email-deliverability-checker", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$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": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/weiseer~email-deliverability-checker/run-sync": { "post": { "operationId": "run-sync-weiseer-email-deliverability-checker", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$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": { "domains": { "title": "Domains", "type": "array", "description": "Domains to check (e.g. example.com). Email addresses and URLs are accepted and reduced to the domain.", "items": { "type": "string" } }, "dkimSelectors": { "title": "DKIM selectors to probe", "type": "array", "description": "Selectors to test at ._domainkey.. Defaults to common ones (google, default, selector1, k1, …).", "items": { "type": "string" } }, "resolvers": { "title": "DNS resolvers", "type": "array", "description": "Public DNS resolver IPs. Defaults to Cloudflare + Google for deterministic results.", "items": { "type": "string" } } } }, "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 } } } } } } } } } } ```