Notifications
Clear all
Topic starter
14/07/2026 4:25 pm
TL;DR: Healthcare organizations sending Epic-generated patient messages must now meet stricter SPF, DKIM, DMARC, and one-click unsubscribe requirements or risk blocked, delayed, or filtered delivery that affects care coordination and compliance, according to Proofpoint. The governance challenge is no longer just deliverability; it is separating high-volume transactional traffic from user email and proving control over message integrity at scale.
NHIMG editorial — based on content published by Proofpoint: secure email relay requirements for Epic-generated healthcare communications
By the numbers:
- When AWS credentials are exposed publicly, attackers attempt access within an average of 17 minutes and as quickly as 9 minutes in some cases.
- Only 44% of organisations have implemented any policies to manage their AI agents, despite 92% agreeing that governing AI agents is critical to enterprise security.
- Systems with least-privileged AI access had a 17% incident rate vs 76% for over-privileged systems, and organisations failing to scope AI access properly are 4.5x more likely to experience a security incident.
Questions worth separating out
Q: How should healthcare organisations secure application-generated patient email?
A: Healthcare organisations should authenticate application-generated email with SPF, DKIM, and DMARC, separate it from user mail, and monitor delivery outcomes continuously.
Q: Why do healthcare email systems fail when authentication is weak?
A: They fail because modern mailbox providers increasingly block or downgrade messages that cannot prove authorised domain use.
Q: What do teams get wrong about transactional email segregation?
A: Teams often assume segmentation is only an operational preference, but in practice it protects domain reputation and limits blast radius.
Practitioner guidance
- Separate transactional and user email streams Create distinct sending domains, relays, and operational ownership for application-generated patient messages so user email reputation changes do not spill over into care communications.
- Enforce SPF, DKIM, and DMARC alignment Audit all Epic-generated send paths for alignment gaps, then monitor policy drift whenever routing, branding, or infrastructure changes alter the authenticated sender.
- Add delivery telemetry for compliance review Require detailed logs, message-level metrics, and alerting so compliance and security teams can prove whether patient emails were accepted, deferred, or blocked.
What's in the full article
Proofpoint's full post covers the operational detail this post intentionally leaves for the source:
- Detailed SER integration guidance for Epic-generated traffic and existing healthcare email flows
- Specific authentication and unsubscribe requirements that affect deliverability with major mailbox providers
- Delivery transparency features, including the logs and metrics compliance teams need for review
- Configuration considerations for separating application mail from user-driven traffic
👉 Read Proofpoint’s analysis of secure relay requirements for Epic-generated healthcare email →
Epic-generated patient email: are your authentication controls keeping up?
Explore further
14/07/2026 4:33 pm
Healthcare email authentication is now part of identity governance, not just messaging hygiene. Epic-generated communications are application-originated identity events, because a system is asserting sender identity to another system on behalf of a healthcare organisation. Once the message stream is high volume and clinically relevant, weak SPF, DKIM, or DMARC handling becomes a governance failure, not an inconvenience. Practitioners should treat message authentication as a control that protects both trust and operational continuity.
A question worth separating out:
Q: Who should own patient email deliverability controls in healthcare?
A: Ownership should be shared across application teams, security, compliance, and identity operations, with clear accountability for sender authentication and relay policy. The organisation needs one group that can prove the controls work and another that can respond when delivery degrades. That prevents critical patient messaging from becoming an orphaned technical problem.
👉 Read our full editorial: Healthcare email relay governance for Epic-generated patient messages
