High-volume application, SaaS, and AI-driven email is rapidly becoming the majority of enterprise email—introducing new risks to domain reputation, security, and business continuity, especially as AI agents autonomously generate and scale communications.

Organizations are adopting purpose-built relay architectures to address these risks— enforcing authenticated machine identity, isolating application traffic, and protecting business-critical communications at scale. Proofpoint Secure Email Relay is designed to deliver this approach with trusted, compliant delivery.

In this Gartner® report, learn why organizations must move beyond legacy email infrastructure and adopt a purpose-built relay architecture to secure automated workflows across applications, machines, and AI-driven systems.

We feel you must get your copy to learn how to:

• Separate machine and human email traffic to eliminate shared reputation risk and prevent domain blocklisting
• Enforce authenticated machine identity with SPF, DKIM, and DMARC to eliminate unauthorized and shadow senders Protect business-critical workflows from disruption caused by high-volume or rogue AI-driven traffic
• Establish centralized governance, monitoring, and compliance for application and AI-generated email

Proofpoint Secure Email Relay extends these capabilities with authenticated sending, domain-aligned DKIM signing, and centralized policy control—helping you protect your domains, ensure deliverability, and securely scale application and AI-driven communications.

Gartner, How to Secure Machine Email Workflows With SMTP Relays, By Franz Hinner, Nikul Patel, 1 March 2026

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