The Email Lookup That Reads Any Address in Seconds

Paste an address and the email lookup returns everything Verifox can read about it: whether it is valid and deliverable, the domain and mail provider behind it, whether it is a role address (info@, sales@), a disposable or throwaway domain, or a catch-all that accepts anything, plus a risk and reputation read.

It is the reverse of a finder. If you instead have a person's name and company and need to look up their address, that is the email finder workflow. This page starts from an address you already have and tells you what is behind it.

Yes, and the free lookup returns the full read-out, not a teaser. You get 4 lookups per day straight from this page, no account, and each one comes back with the verdict plus the domain, provider, type, and risk fields. There is no cut-down result that withholds the interesting columns until you pay.

When four a day stops being enough, a free account adds 1,000 lookups immediately, 2,500 if you sign up with a work address. Past that, credits are pay-as-you-go, never expire, and are priced for your region on the pricing page.

A reverse email lookup starts from the address rather than the person. You hand it an email and it works backwards to surface details about that address. That is exactly what this tool does: it reads the domain, the provider, the address type, and the deliverability and risk signals tied to the address you paste.

What it does not do is dig up someone's private identity, social profiles, or personal phone number from an address. We do not build that kind of dossier. If your goal is to find a person's work email from their name, the email finder covers that direction instead.

A lookup is only worth running if you can trust what comes back, so we benchmark it the hard way: against a 1,000-address list salted with the catch-all domains that trip up most lookup tools, the engine calls 99.99% of addresses correctly. The lookup on this page and the paid Email Verification API are the same pipeline; the only thing the free tier limits is how many you can run.

If you do not need the domain, provider, and type detail and just want a valid-or-invalid verdict, the free email checker runs the same engine with a simpler read-out.

Yes, and that is most of the value. The lookup flags disposable and throwaway domains, detects role addresses like info@, support@, and sales@ that no single person reads, and identifies catch-all domains that accept any local part so a plain ping looks deliverable when it is not.

Catch-all resolution is the hard one. Verifox runs an AI-confidence pass to call catch-all addresses that a rules-only lookup would leave as “unknown,” which is where 20 to 40% of B2B lists actually go wrong. The full read is part of the verification engine.

It does. Alongside the mailbox-level checks, the lookup reads the domain's MX records, its authentication posture, and its blocklist history, so a clean-looking address on a poor-reputation domain does not slip through.

If you want to lead with the domain rather than a single address, the email domain reputation checker puts blocklist history, SPF, DKIM, DMARC, and domain age front and center. It is the same engine, scoped to the sending domain.

Yes. Upload a CSV and every row gets the identical treatment a single lookup gets: valid, deliverable, domain, provider, type, and risk, as columns you can filter and sort. Bulk jobs run in parallel at up to 10,000 emails per minute, so a full prospect list comes back in minutes, not an overnight wait.

The 1,000 signup lookups (2,500 on a work email) cover most small lists without spending anything. Beyond that, credit packs are pay-as-you-go and never expire, and the same bulk endpoint is exposed through the API if you would rather script it.

No, and for a lookup tool that question matters more than usual, because the address you paste here is usually someone else's. It exists in memory only for the seconds the checks take to run, then it is gone. We do not log it, we do not resell it, and we never fold it into any people-search or enrichment database.

The controls behind that promise are audited: SOC 2 Type II, with GDPR and CCPA alignment, and the privacy policy spells out exactly what the lookup touches and what it never sees.

Yes. The REST API reference documents the inbound and outbound shapes for every endpoint, so you can drop real-time email lookup into signup forms, CRMs, or any tool that speaks REST. HubSpot, Salesforce, Zapier, Klaviyo, Mailchimp, and Brevo all connect out of the box.

Verifox also ships native MCP server support so AI agents (Claude, Cursor, custom LLM apps) can look up addresses without glue code. Drop the MCP URL into your agent config and the tools are wired.

Risky means the mailbox could not be confirmed or ruled out with certainty. The usual cause is a catch-all domain whose server says yes to every address it is asked about, but a full inbox or a temporarily frozen account lands there too. Invalid is reserved for addresses we know will bounce: broken syntax, a dead domain, a mailbox the server rejected outright, or a disposable provider.

Rather than leave every catch-all as a shrug, the lookup runs an AI-confidence pass and returns a 0 to 100 score with the verdict, so you can set your own line for what counts as sendable. The email validation API reference documents every verdict and field the lookup can return.