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Key takeaways
- Email is now an identity problem, not just an inbox problem.
- Recent Gartner research highlights the growing risk in machine- and AI-generated email.
- A centralized control plane helps secure identity, data, and delivery across modern email workflows.
Organizations are rapidly expanding how they communicate through machine-, application-, SaaS-, and AI-generated email. These messages now power critical workflows, from customer notifications to financial alerts, and increasingly support AI-driven interactions.
Proofpoint’s view is that this shift creates a new class of identity, security, and delivery risk—one that many organizations still underestimate.
Email is now an identity problem
Email is no longer just a human channel or inbox problem. Today, a growing share of the messages that customers, patients, partners, and employees rely on are generated by applications, SaaS platforms, cloud services, APIs, and AI-driven systems. These messages power password resets, financial alerts, patient notifications, billing workflows, onboarding journeys, and a wide range of other trusted digital interactions.
That shift changes the risk model. Organizations are now responsible for an expanding sending identity surface. Every system that sends from your domains inherits your brand trust. When those systems are fragmented, unauthenticated, or poorly governed, attackers gain new ways to abuse that trust.
This is why application-generated and AI-driven email demands more attention from security and messaging teams. The issue is not simply email volume. It is whether organizations can still see, control, and secure who is sending on their behalf as attacks increasingly shift from breaking infrastructure to exploiting trusted identities and workflows.
Gartner highlights growing risk in machine- and AI-generated email
Recent Gartner research highlights risks associated with machine-, application-, and AI-generated email. In Proofpoint’s assessment, this research reflects a broader industry shift: automated email is no longer just an operational byproduct—it is becoming a primary communication channel that requires dedicated security and governance.
Machine-generated email is growing rapidly. Mixing automated and user email introduces shared reputation risk and potential blocklisting, while unauthenticated or unmanaged senders can create spoofing, compliance, and visibility gaps.
The implication, in our view, is not incremental—it is architectural. Machine- and AI-generated email requires identity control, isolation, and a purpose-built relay architecture designed specifically for these workflows.
In our view, this marks the point where email relay evolves from background infrastructure to a strategic control plane.
How control breaks and risk expands
Historically, email was centralized and easier to manage. Today, it often originates from systems that organizations do not fully control, including SaaS platforms, cloud services, and third-party providers.
This creates common challenges: fragmented SPF records, limited visibility, inconsistent authentication, and reliance on third-party senders with varying security practices.
As these gaps expand, risk grows across three areas: identity, data, and delivery.
AI accelerates the challenge
AI is accelerating both the scale and complexity of this problem. It increases the number of systems acting on behalf of your organization while also introducing more dynamic and less predictable communication patterns.
This raises new risks, including sensitive data exposure and misuse of trusted communication channels. AI is not just expanding email. It is accelerating the breakdown of traditional control models, making centralized governance and identity enforcement essential.
Why Secure Email Relay matters now
Proofpoint’s Secure Email Relay is purpose-built to address these challenges by providing a centralized control plane for application- and AI-generated email.
It protects your domains from abuse by enforcing authenticated, authorized sending across all applications, SaaS platforms, and third-party systems—helping eliminate unauthorized and shadow senders.
It ensures trusted delivery by isolating application traffic from user email, preventing blocklisting, and preserving domain reputation so business-critical communications are delivered without disruption.
And it secures sensitive data by applying data loss prevention (DLP) and encryption controls to outbound messages—supporting compliance across regulated industries while centralizing visibility and governance across all sending sources.
Control across critical industries
In healthcare, communications such as appointment reminders, patient portal messages, and clinical updates are mission critical. SER helps protect protected health information (PHI), ensure delivery, and reduce compliance risk across these workflows.
In financial services, communications are directly tied to transactions. SER helps secure sensitive financial data, ensure delivery of time-sensitive notifications, and maintain customer trust.
A new control plane for modern email
As organizations continue to adopt cloud, SaaS, and AI-driven systems, the communication layer becomes a critical control point. In Proofpoint’s view, securing that layer is no longer optional. It is foundational to protecting identity, maintaining compliance, and ensuring business continuity.
Learn more
As trusted digital workflows continue to expand, securing machine email is becoming essential. Organizations that establish the right control plane now will be better positioned to protect identity, data, and delivery as application- and AI-generated communications continue to scale.
To explore the analyst perspective, download the Gartner report: Secure machine-generated email before it disrupts your business.
To hear the broader market context and see how Proofpoint Secure Email Relay addresses these challenges in practice, watch the webinar, “Securing Application-Generated Email to Protect Trusted Digital Workflows.”
