BounceRadar

BounceRadar is a web app + API that continuously monitors your outbound email streams (SendGrid, SES, Mailgun, Postmark) and turns messy bounce/complaint data into actionable, automated suppression and routing rules. Instead of waiting for reputation damage, it detects early warning signals like rising hard-bounce clusters, ISP-specific blocks, sudden complaint spikes, and domain-level failures. It normalizes events across providers, correlates them with recent list sources/campaigns, and can automatically quarantine risky segments, pause specific templates, or switch traffic to a backup provider. The MVP focuses on being a “deliverability circuit breaker” rather than another dashboard. It includes a lightweight webhook collector, rules engine, and audit trail so teams can prove what happened and why. This is not magic: it won’t fix bad sending practices, but it will reduce the time-to-detect and time-to-mitigate when things go wrong.