What Is Mailthentic?

Mailthentic is an email verification platform that helps businesses validate email addresses before sending campaigns. By checking whether an email address is real, active, and able to receive mail, Mailthentic protects your sender reputation and improves deliverability.

What Mailthentic Does

• Syntax validation — Checks that the email address follows the correct format (e.g., user@domain.com).
• Domain & DNS verification — Confirms the domain exists and has valid MX (mail exchange) records configured to receive email.
• SMTP mailbox verification — Connects to the mail server to verify whether the specific mailbox exists and can accept messages.
• Catch-all detection — Identifies domains that accept mail for any address, making individual verification unreliable.
• Provider detection — Recognizes major providers like Google Workspace, Microsoft 365, Yahoo, and ProtonMail to apply provider-specific logic.
• DNS security checks — Evaluates SPF, DKIM, and DMARC records to flag domains with weak email authentication.
• Disposable email detection — Flags temporary or throwaway email addresses.
• Role-based email detection — Identifies generic addresses like info@, admin@, or support@.

Who Is Mailthentic For?

• Email marketers — Clean your lists before campaigns to reduce bounces and protect your domain reputation.
• SaaS companies — Verify user signups in real time to prevent fake accounts.
• Sales teams — Validate prospect email lists before outreach to improve deliverability.
• Developers — Integrate email verification into your signup forms and workflows.

Key Benefits

1. Lower bounce rates — Remove invalid addresses before they damage your sender score.
2. Better inbox placement — A clean list means fewer spam complaints and higher engagement.
3. Cost savings — Stop paying your ESP to send emails that will never be delivered.
4. Fraud prevention — Block disposable and fake email addresses at the point of signup.