Contact

Last updated: August 6, 2026

We do not have a public phone line. The fastest way to reach us is by email.

Email us

For general questions, account help, billing, or anything else: hi@mailcertify.online.

Security reports

If you found a security issue, email hi@mailcertify.online with the subject line “Security report.” Please don’t include sensitive details in the first message — we’ll reply with a secure way to share them.

Response time

We aim to respond within two business days.