InboxEagle is a deliverability monitoring platform built entirely for Klaviyo - for the eCommerce brands, agencies, and retention marketers who run their email and SMS on it. Most deliverability problems are silent. Authentication quietly breaks, inbox placement slips, sender reputation erodes and your Klaviyo dashboard still shows healthy opens, because the handful of people who dig your email out of spam still open it. By the time revenue drops, the problem is already months old. InboxEagle watches the layer: • Inbox placement monitoring across Gmail, Yahoo, Outlook and more • SPF, DKIM and DMARC checks on every Klaviyo campaign with a Deliverability Incident Agent that opens an incident the moment something breaks, tells you what failed and why, and tracks recovery • Sender reputation and Google Postmaster signals brought into one view • Seed-list inbox testing and bot / invalid-open detection, so your engagement numbers reflect real humans • Klaviyo cost optimization - stop paying to send to unengaged and junk contacts • A multi-client workspace, so agencies can monitor every Klaviyo account from one place and catch problems before clients do InboxEagle complements Klaviyo, it doesn't replace it. It connects in minutes with your Klaviyo private API key and gives your sending program the early-warning system it's missing. Trusted by DTC founders protecting revenue, agencies managing deliverability across dozens of Klaviyo accounts, and retention operators whose reputation depends on emails actually landing.