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Modalitymodality.email

Email

Outbound message delivery via SMTP/ESPs. Tolerates Intra-day to Weekly latency tiers; transactional cases (Inter-page) are the exception.

confidence 90%v1reviewed Apr 26, 2026modality, email, esp, transactional

Email

Outbound delivery via Email Service Providers. Tolerates the widest latency range of any modality — from Inter-page (transactional like password reset) to Weekly (lapsed-user).

Governance. Subject to CAN-SPAM, GDPR Art. 7 consent, suppression list management. Permission and preference state must be authoritative and machine-enforced at activation time.

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← Referenced by

  • applies-to-modalityuse-case.transactional-email— By definition
  • applies-to-modalityconcept.modality-complexity— Each modality contributes to complexity
  • prerequisite-ofconcept.consent-management— Consent must be validated before email activation; machine-enforced opt-out is a hard prerequisite of email channel operation.
  • governsconstraint.tcpa-revoke-all-universal-opt-out— TC-78. Email unsubscribe is a 'reasonable means' of opt-out under the Revoke-All rule; clicking unsubscribe in email must propagate to suppression of SMS and push for the same sender.
  • applies-to-modalityuse-case.abandoned-cart— OC-053. Email is the primary activation channel for abandoned-cart recovery: first-party opt-in channel, high deliverability, supports product thumbnail display, widely used across ecommerce and travel verticals where abandoned-cart is most prevalent. The standard re-engagement sequence (30-minute email, 24-hour follow-up) is email-first.
  • applies-to-modalityuse-case.loyalty-program-personalization— OC-055. Email is the primary tier-event and offer-delivery channel for loyalty programs. Node body explicitly names email in the multi-channel delivery list. Tier upgrade emails, milestone acknowledgments, and templated offer deliveries are standard CDP→ESP activation flows for loyalty programs.
  • applies-to-modalityuse-case.win-back— OC-057. Email is the primary win-back channel: the use-case node body describes a Day-1/Day-7/Day-14/Day-30 multi-touch sequence that is email-orchestrated by design. Long-form content, product imagery, and personalized re-engagement offers are email-native; daily/weekly latency tier (OC-054 confirms daily for win-back) matches email batch-cadence delivery.