Free email tools
Check whether an email address exists, test MX, SPF, DKIM and DMARC records, and spot disposable addresses. Free, no account needed.
Free tool · live SMTP check
Email validator
Does this mailbox exist?
Free tool · SpamAssassin + authentication
Email spam checker
Will your email land in spam?
Free tool · CSV in, CSV out
Bulk email validator
Clean a list of up to 50 addresses.
Free tool · runs in your browser
Email syntax checker
Is the address written correctly?
Free tool · open-source lists
Disposable email checker
Is this a throwaway address?
Free tool · live DNS
MX record lookup
Which servers receive mail for a domain?
Free tool · live DNS
SPF record checker
Is the SPF record valid?
Free tool · live DNS
DMARC record checker
Is the domain protected against spoofing?
Free tool · live DNS
DKIM record checker
Is the DKIM key published?
Reference
Email validation API
Validate emails in your app
emailvalidation.io checks syntax, MX records and the mailbox over SMTP, flags disposable, role and free addresses and returns a quality score, in one request.
Read the docs100 free validations every month. No credit card required.
GET https://api.emailvalidation.io/v1/info?email=support@emailvalidation.io
{
"email": "support@emailvalidation.io",
"domain": "emailvalidation.io",
"format_valid": true,
"mx_found": true,
"smtp_check": true,
"disposable": false,
"role": true,
"free": false,
"score": 0.64,
"state": "deliverable",
"reason": "valid_mailbox"
}