Free tools
Email address checker
Check an email address before you send to it or save it: is it well formed, does its domain accept mail, is it a throwaway address, and is it a typo like gmial.com?
Runs on our API. What you enter is sent over HTTPS to api.dokazindustries.com, which does the work and sends the result straight back. The API keeps no copy of it; it counts calls per network (by a one-way hash of your IP address) to hold the free tier to 100 calls a day.
How to use it
- Type or paste one email address.
- Press Check. The address is checked for correct form, a domain that accepts mail, a throwaway provider, a role address like info@, and common typos.
- Read the verdict and the reasons. If it suggests a correction (gmial.com to gmail.com), ask the person to confirm before you change it.
Need this in bulk, or from code?
The same job is one HTTP call to our API: GET /v1/email/verify. 100 calls a day free with no key; paid plans from $9 a month. One key
works for every API.
Questions
Does it prove the mailbox exists?
No, and no honest checker can without sending mail. It checks that the address is well formed and that its domain is set up to receive mail (it has MX records, or an address that implies one). An address at a real domain can still bounce if that one mailbox does not exist.
What does “valid” mean here?
The address is well formed, its domain accepts mail, and the domain is not a known disposable (throwaway) provider. The score from 0 to 100 adds softer signals, such as a role address or a local part that looks random.
What is a role account?
An address for a job rather than a person, such as info@, sales@ or support@. It is real, but often read by several people or nobody in particular, so it is flagged rather than rejected.
Do you store the addresses I check?
No. The address is sent over HTTPS to api.dokazindustries.com, checked, and the result sent back; the API keeps no copy. It does ask public DNS about the address's domain, never about the mailbox.
Can I check a whole list?
Not on this page, which checks one at a time. The API checks up to 50 addresses per call, with one DNS lookup per domain; that is the way to clean a list.