What this checker tests
- Syntax: is it a correctly formed address?
- Domain and MX: does the domain exist, and does it accept email?
- Disposable: is it a throwaway inbox provider?
- Role address: is it a shared inbox like info@ or sales@?
- Free webmail: gmail.com, outlook.com and similar.
The free checker stops before the mailbox check. To confirm the mailbox itself exists, and whether the domain is
catch-all, use full verification. Your first 250 are free.
Checking a whole list?
Paste or upload it in the verifier, or estimate its quality first with the list sampler. Results explained: how email verification works.