Amazon Simple Notification Service (SNS)

Amazon SNS is a fully managed pub/sub messaging service that enables seamless communication between distributed applications and direct messaging to end users. Whether you need application-to-application (A2A) integration or application-to-person (A2P) notifications, SNS provides reliable message delivery at scale.

Key capabilities include:

• Multi-channel delivery: Send SMS texts, mobile push notifications, and emails to users worldwide
• Global reach: SMS support across 240+ countries with provider redundancy
• FIFO messaging: Maintain strict message ordering for critical applications
• Advanced security: Message encryption with AWS KMS and private network access via AWS PrivateLink
• Event integration: Connect with 60+ AWS services for comprehensive event handling

Perfect for:

• Decoupling microservices architectures
• Customer notifications and alerts
• Real-time event processing
• Cross-application messaging
• Mobile app push notifications

SNS simplifies your architecture with built-in message filtering, batching, and deduplication while increasing durability through delivery retries, dead-letter queues, and message archiving. Scale from hundreds to millions of messages without managing infrastructure.