Bounce & Spam Complaint Alerts on WhatsApp

The agent listens to your SendGrid Event Webhook for bounces and spam complaints. When volume spikes above normal, you get a WhatsApp alert with the likely cause and recommended fix.

Webhook + WhatsApp DMbouncesdeliverabilitywebhook

Conversation example

Webhook received: 84 bounces in last 5 min (baseline 4/min)
http_request → SendGrid Stats API

Bounce rate just spiked 21x above baseline. Investigating...

Deliverability Alert — Bounce Spike Window: last 5 minutes Bounces: 84 (baseline 4/5min) Blocks: 12 Pattern: 92% of bounces are from @xyzcorp.com recipients. Likely cause: a single import or segment targeted xyzcorp addresses that were already on their internal blocklist. Looks like a 'Relay access denied' SMTP code. Recommendations: 1. Pause any active send that's targeting xyzcorp addresses. 2. Add xyzcorp.com to a temporary exclusion list in LunoGen. 3. Check if this is a legitimate customer segment — if so, the contact at xyzcorp IT needs to whitelist your domain. Reply 'pause the April Digest' to stop the send in progress.

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