cdc.gov - Email Domain Verification & Deliverability Report

The domain cdc.gov belongs to the Centers for Disease Control and Prevention (CDC), the national public health agency of the United States. Headquartered in Atlanta, Georgia, the CDC is a division of the Department of Health and Human Services responsible for disease prevention, health promotion, emergency preparedness, and protecting public health nationwide.

As a federal .gov domain, cdc.gov is required to comply with CISA Binding Operational Directive 18-01, mandating DMARC, SPF, and DKIM implementation. The CDC is a frequent target of phishing campaigns, especially during public health emergencies, where fraudulent emails may impersonate the agency to spread misinformation or steal personal data.

CDC mail servers do not operate as catch-all systems. Recipient addresses are validated during the SMTP transaction, and messages to nonexistent mailboxes are rejected. The agency's email infrastructure employs greylisting, rate limiting, and strict sender validation to manage its high volume of inbound correspondence.

Reliable email delivery to cdc.gov demands full compliance with authentication protocols. The CDC's federal email gateways apply rigorous content filtering, attachment scanning, and sender reputation analysis. Maintaining correctly configured SPF, DKIM, and DMARC records, along with a positive sending reputation, is essential for reaching CDC inboxes.

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