How does email validation work?▼
Our tool checks the email format against RFC standards, verifies the domain exists and has valid MX records, and identifies the email provider. All checks are done in your browser.
What are MX records?▼
MX (Mail Exchange) records are DNS records that specify which mail servers handle email for a domain. A domain without MX records typically cannot receive email.
Can this tool verify if an email address actually exists?▼
Browser-based tools cannot definitively verify if a specific mailbox exists (that requires server-side SMTP checks). Our tool validates format, domain, and MX records, which catches most invalid addresses.
What makes an email address valid?▼
A valid email has a local part (before @), an @ symbol, and a domain part (after @) with valid DNS records. The local part can contain letters, numbers, dots, hyphens, and certain special characters.
Does this tool check for disposable email addresses?▼
Yes, we check against a database of known disposable/temporary email providers and flag them accordingly.
Is my email address stored or sent anywhere?▼
For format and local checks, everything happens in your browser. MX record checks use public DNS queries. We never store any email addresses you enter.
What email providers can be detected?▼
We can detect hundreds of email providers including Gmail, Outlook, Yahoo, iCloud, ProtonMail, Zoho, Fastmail, and many corporate/enterprise email systems.
Can I validate multiple emails at once?▼
Yes! Enter one email per line in the text area. Each email will be validated individually with results shown in a table.