Isolate email suppression per tenant with Amazon SES
Messaging & Targeting Blog
This article explains how Amazon SES tenant-level suppression lists solve cross-tenant contamination in multi-tenant email platforms by isolating bounce and complaint data per tenant.
- Tenant-level suppression prevents one tenant's poor email hygiene from blocking other tenants' valid recipients
- Each tenant maintains an isolated suppression list controlled by the PutTenantSuppressionAttributes API
- Suppression scope can be set to TENANT (isolated) or ACCOUNT (shared default)
- Suppression precedence order: Configuration Set > Tenant > Account
- Hard bounces add addresses to both tenant and global lists; complaints add to tenant list only
- Backward compatible and opt-in per tenant; existing account-level suppression unchanged
- Ideal for SaaS platforms, marketing automation providers, digital agencies, and enterprises with multiple brands
Tenant-level suppression enables fair deliverability outcomes and reduces support burden by giving each tenant independent control over their email reputation.
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