Give us a name and a company domain. We work through the email patterns companies actually use, check them against the real mail server, and tell you which one exists.
Checking the patterns this company is most likely to use
There is no magic list of everyone's email. What there is: companies pick one format and stick to it. So we work out the format, then confirm the address against the server that would receive it.
From the name and domain we generate the formats companies actually use, ordered by how common each one is in the real world.
We open a conversation with the company's mail server and ask whether each address would be accepted, starting with the most likely. Nothing is ever delivered.
If the server confirms a mailbox, you get it marked confirmed. If the server refuses to answer, or accepts everything, we say so instead of dressing a guess up as a fact.
Corporate email is far less varied than it looks. These few formats cover the overwhelming majority of work addresses, which is exactly why pattern-based finding works at all.
The finder tells you which address exists. The verifier goes further: disposable domains, role inboxes, catch-all servers, and whether the mailbox is safe to send to without risking your sender reputation.
Go4Database holds verified work emails and direct dials for millions of decision makers. Search by job title, industry and location, and export whole lists instead of looking people up one by one.
Get 1200 free credits No credit card requiredYes. You can look up addresses here without an account, a card, or a trial. Bulk lookups and exporting whole lists are part of the paid Go4Database platform.
When we mark an address "Confirmed", the company's own mail server told us that mailbox exists, which is as close to certain as you get without sending an email. When it says "Best guess", we are showing the most common format because the server would not confirm either way, and we label it that way rather than pretending otherwise.
Some companies configure their mail server to accept mail sent to any address at their domain, real or not. On those domains no single address can be confirmed, because the server says yes to everything, so we tell you it is a catch-all instead of claiming we verified something.
No. We start the delivery conversation with the mail server and ask whether the address would be accepted, then stop before anything is sent. The person never receives a message and never sees the check.
Large providers like Microsoft and Google often refuse to answer address checks from senders they do not recognise. When that happens we cannot confirm anything, so you get the most likely pattern marked as a guess. The company may also simply not use any common format.
No, and that is deliberate. Personal inboxes do not follow a company pattern, so there is nothing to work out. The finder is built for work addresses at company domains.
Find the address, verify it, then reach the person. All of it free to try.