Email Verifier
Validate an email address: syntax, the domain's mail servers, and disposable or role-based patterns - no risky SMTP probe.
What this email verifier checks
This tool validates an email address three ways: the syntax is well-formed, the domain has working mail servers (MX records) so it can receive mail at all, and the address isn't an obvious disposable or role-based inbox.
It deliberately does not open an SMTP connection to probe the exact mailbox. Live SMTP verification risks getting sending IPs blocklisted and is what abusive bulk checkers do. For safe, no-signup validation of syntax, domain, and address type, this covers the cases that matter most before you add someone to a campaign.
What the flags mean
Disposable
A throwaway/temporary email provider. Don't send real outreach - these mailboxes vanish.
Role-based
A shared inbox like info@ or support@, not a person. These convert poorly and complain more.
Free provider
A personal mailbox (gmail.com, outlook.com). Fine to know, not a problem in itself.
No MX
The domain has no mail servers, so the address is undeliverable.
Frequently asked questions
Does this confirm the mailbox exists?
No. It validates syntax, the domain's mail servers, and address patterns, but it does not open an SMTP connection to probe the specific mailbox - that carries blocklist risk. It confirms the address is deliverable-shaped, not that the inbox is active.
What is a role-based email?
A shared, non-personal inbox like info@, sales@, or support@. They tend to convert poorly and generate more spam complaints, so many senders exclude them from cold outreach.
What is a disposable email?
A temporary address from a throwaway provider (like Mailinator). It's designed to expire, so sending real outreach there is pointless and can hurt your metrics.
Why avoid live SMTP verification?
Repeated SMTP probing to check mailboxes can get your sending IPs flagged and blocklisted, and many providers reject or falsely accept such probes. A safe check stops at syntax, MX, and pattern analysis.
Next steps
Stop configuring DNS by hand
Cladiant provisions real Google Workspace, Microsoft 365, and Azure Entra mailboxes with SPF, DKIM, and DMARC written and verified on every domain before a single message sends. No DNS headaches, no authentication gaps, one invoice.