This article explains how Amazon SES Email Validation helps protect sender reputation by preventing bounces through two complementary approaches.

• Email Validation API validates addresses at registration with real-time feedback within milliseconds
• Auto Validation automatically checks all outbound emails before sending, suppressing invalid addresses
• High bounce rates (over 5%) trigger ISP warnings; exceeding 10% risks throttling or blocking
• API returns confidence verdicts (HIGH, MEDIUM, LOW) with six detailed validation checks per address
• Auto Validation costs $0.01 per 1,000 validations; API costs $0.01 per validation
• Suppressed sends count toward daily quota and incur standard outgoing message fees
• CloudWatch metrics track validation patterns and list quality trends over time
• Custom business logic allows different validation policies for B2B versus consumer use cases

Amazon SES Email Validation shifts email management from reactive bounce handling to proactive quality assurance, protecting sender reputation without requiring third-party tools or infrastructure.