01 / 04
Start with an address you can use.
Signup, confirmation, recovery, notifications, support, and sales can all depend on one field being usable.
Know what you're accepting at signup.
emailverifier.dev helps you spot invalid addresses, disposable inboxes, and likely typos before creating an account or importing a contact.
See how checks workOne addressMultiple signals
CHECK
THE
WHOLE
ADDRESS.
One request checks the address and returns a recommended action with the reasons behind it.
01 / 04
Start with an address you can use.
Signup, confirmation, recovery, notifications, support, and sales can all depend on one field being usable.
02 / 04
Check the address and its provider.
Look at structure, mail routing, provider type, risk signals, and, when available, mailbox acceptance and catch-all behavior.
03 / 04
Know when a check is inconclusive.
A confirmed failure, a risk signal, and an unknown mailbox result each need different handling. The response keeps them separate.
04 / 04
Give users a clear next step.
Ask for a correction when an address is invalid, suggest a fix for a likely typo, and send a confirmation email when inbox ownership matters.
Your signup rules
Decide what each result means for your product.
An invalid address needs a correction. A disposable inbox may conflict with your trial policy. An uncertain mailbox result may need email confirmation. The response gives you the detail to handle each case.
The API recommends allow, review, or block. Your application decides what happens next. Verification does not prove inbox ownership or guarantee that a message will arrive.
01
Check the whole address.
Check the address format, likely typos, whether the domain can receive mail, and known provider risks. Mailbox acceptance and catch-all checks are included when available.
02
Use the result your way.
Correct a likely typo, block a confirmed failure, apply your own disposable-address policy, or require confirmation when inbox access matters.
03
Pay when you need more.
Start with 1,000 non-expiring credits on your first project. Add 20,000 more for $10 whenever you need them.
Try it with your own addresses.
Create your first project with 1,000 non-expiring starter credits. No card required.