# EmailScore
> Real-time email and domain checks, with the evidence behind every verdict

An API that checks an email address or a domain during the request and returns allow, challenge, or deny with the flags and facts behind it — domain age when on record, mail host, MX, SPF, DMARC, disposable providers, and typos. Bulk endpoints take up to 10,000 per request.

## Product and tools
- [EmailScore — Real-Time Email & Domain Checks with Evidence](https://emailscore.io/): Check an email or domain during signup, invites, trials, or domain claims. Get allow, challenge, or deny with the flags and facts behind it — domain age, mail host, SPF, DMARC, disposable providers, typos.
- [EmailScore Benchmarks — Evidence, Measurement & Limits](https://emailscore.io/benchmarks): Understand what synthetic classification, campaign outcomes, and engine timing establish—and what they cannot prove about delivery.
- [Bulk Re-Check — Existing Users & Contact Lists | EmailScore](https://emailscore.io/clean): Upload a CSV or paste a sheet to re-check the addresses you already have. Each address gets a decision and flags; failed and unchecked rows stay marked in the export.
- [EmailScore API Reference — Email & Domain Checks](https://emailscore.io/docs): Endpoints for /v1/email, /v1/domain, their bulk variants, and bounce diagnostics — authentication, response fields, flags, and the OpenAPI 3.1 specification.
- [EmailScore Pricing — Real-Time Email & Domain Check Credits](https://emailscore.io/pricing): 1 credit per email check, domain check, or bulk entry; 5 per bounce diagnosis. Compare monthly credits, request rates, API keys, and the rate after your allowance.
- [Data Handling & Privacy — EmailScore](https://emailscore.io/privacy): Information about email checks, diagnostic processing, account data, and questions to confirm before submitting personal data to EmailScore.
- [Bulk Re-Check — Existing Users and Customer Domains | EmailScore](https://emailscore.io/solutions/bulk-recheck): Domains expire, get parked and drop their mail servers after signup. Re-check existing users with /v1/email/bulk and customer domains with /v1/domain/bulk, up to 10,000 per request.
- [Disposable Email Screening API | EmailScore](https://emailscore.io/solutions/disposable-email-blocker): Review disposable-domain indicators together with syntax, domain checks, and risk recommendations. Decide whether a temporary address fits your product’s policy.
- [Partner & Vendor Onboarding Checks — Email and Domain | EmailScore](https://emailscore.io/solutions/partner-onboarding): Check the contact address and the company domain on a partner, reseller, or vendor application. A two-week-old domain or a free-mail contact for a claimed company is worth a second look.
- [Signup Screening API — Email Checks in the Request Path | EmailScore](https://emailscore.io/solutions/signup-screening): Call /v1/email in the handler that creates the account, sends the invite, or issues the key. Get allow, challenge, or deny with the flags and domain facts behind it, in the same request.
- [SMTP Bounce Diagnostics — Interpret Delivery Failures | EmailScore](https://emailscore.io/solutions/smtp-bounce-diagnostics): Classify supplied delivery-error messages and review recommended next actions. Bounce diagnosis is post-send analysis and uses 5 credits per evaluation.
- [Repeat Trial Addresses — Normalized Email Identity | EmailScore](https://emailscore.io/solutions/trial-abuse): Normalized addresses and fingerprints collapse plus-tags and provider dot variants, so a new trial address can match a record you already hold. Add disposable and new-domain flags before granting the trial.
- [Workspace & Custom Domain Checks — /v1/domain | EmailScore](https://emailscore.io/solutions/workspace-domains): Before someone claims a domain for a workspace, auto-join, SSO, or a custom domain, check its age when on record, parked or dead status, mail host, SPF and DMARC, and look-alike flags in one request.
- [Terms of Service & Acceptable Use Policy — EmailScore](https://emailscore.io/terms): Terms of Service, Lawful Data Acquisition Warranty, Anti-Harvesting Policy, and Acceptable Use Policy for EmailScore.
- [EmailScore Comparisons — Mailbox Verification vs. Request-Time Checks](https://emailscore.io/vs): Compare providers by the decision you need to make — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. AbstractAPI — Evaluate Workflow Fit](https://emailscore.io/vs/abstractapi): Compare EmailScore and AbstractAPI by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. BriteVerify — Evaluate Workflow Fit](https://emailscore.io/vs/briteverify): Compare EmailScore and BriteVerify by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. Clearout — Evaluate Workflow Fit](https://emailscore.io/vs/clearout): Compare EmailScore and Clearout by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. DeBounce — Evaluate Workflow Fit](https://emailscore.io/vs/debounce): Compare EmailScore and DeBounce by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. Hunter.io — Evaluate Workflow Fit](https://emailscore.io/vs/hunter): Compare EmailScore and Hunter.io by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. Kickbox — Evaluate Workflow Fit](https://emailscore.io/vs/kickbox): Compare EmailScore and Kickbox by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. NeverBounce — Evaluate Workflow Fit](https://emailscore.io/vs/neverbounce): Compare EmailScore and NeverBounce by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.
- [EmailScore vs. ZeroBounce — Evaluate Workflow Fit](https://emailscore.io/vs/zerobounce): Compare EmailScore and ZeroBounce by the question each answers — mailbox verification, or a request-time email and domain verdict with the evidence attached. Sourced capabilities, no rankings.

## Developer resources
- [API documentation](https://emailscore.io/docs): Authentication, requests, response formats, and integration examples.
- [OpenAPI specification](https://emailscore.io/openapi.json): Machine-readable endpoint and response definitions.
- [Full product reference](https://emailscore.io/llms-full.txt): Page descriptions, API summaries, and the current credit catalog.