HelloInbox is an email deliverability toolkit for marketers and other senders who need to diagnose inbox-placement problems and monitor sender health. Its workflow combines email testing, authentication and reputation analysis, list verification, content checks, DMARC monitoring, inbox placement testing, and AI-guided recommendations.
Users can add sending domains, import relevant data, run tests, review findings, and monitor for changes. The product also provides an AI assistant that uses sender-profile context and can answer questions about test results. The site presents HelloInbox as a way to identify problems such as authentication failures, invalid addresses, spam-triggering content, reputation drops, and messages landing in spam or promotions folders.