epa.gov - Email Domain Verification & Deliverability Report

The domain epa.gov belongs to the U.S. Environmental Protection Agency (EPA), an independent federal agency responsible for protecting human health and the environment. Headquartered in Washington, D.C., the EPA develops and enforces environmental regulations, conducts research, and provides grants for environmental programs across the United States.

As a federal .gov domain, epa.gov is subject to CISA Binding Operational Directive 18-01, requiring DMARC, SPF, and DKIM implementation. The EPA's regulatory authority makes it a target for phishing campaigns aimed at businesses, environmental organizations, and communities seeking environmental compliance or safety information.

EPA mail servers do not operate as catch-all systems. The SMTP infrastructure validates recipient addresses and rejects messages to nonexistent mailboxes. Federal email servers for epa.gov employ greylisting, rate limiting, and strict connection filtering to manage inbound email traffic.

Reliable email delivery to epa.gov requires full compliance with authentication protocols. Federal email gateways apply comprehensive content filtering, attachment scanning, and sender reputation evaluation. Senders must maintain correctly configured SPF, DKIM, and DMARC records and a positive sending reputation for successful delivery to EPA staff.

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