Email Validator
ServerCheck syntax, MX records, and disposable domains.
Checks syntax, looks up the domain's MX records, and flags disposable providers. It does not send mail.
About the Email Validator
A typo in an email address means a bounced message or a lost lead. This free email validator checks the address syntax, verifies that the domain has MX (mail) records, and flags disposable providers — without ever sending an email.
It's a quick way to clean a list or validate a signup.
What the validator checks
- Correct email syntax and format.
- Whether the domain exists and has MX records to receive mail.
- Whether the domain is a known disposable/temporary provider.
What validation can and can't confirm
This checks three things: that the address is syntactically valid, that its domain has MX records so it can receive mail, and whether the domain is a known disposable provider. What it can't do — without sending a message — is prove a specific mailbox exists. That's a deliberate limit: real inbox verification requires an SMTP probe, which is intrusive and often blocked.
Frequently asked questions
How does email validation work here?
It checks the address format, looks up the domain's MX records to confirm it can receive mail, and flags disposable domains — all without sending a message.
Does it confirm the inbox exists?
It verifies the domain can receive email, but mailbox-level existence can't be reliably confirmed without sending mail, which this tool doesn't do.
What is a disposable email?
A temporary, throwaway address from services people use to avoid giving a real email. Flagging them helps keep signups and lists clean.
Can it tell me if an email address really exists?
It confirms the domain can receive mail and the address is well-formed, but mailbox-level existence can't be verified reliably without sending an email, which this tool doesn't do.