Most cold email campaigns fail before anyone reads them. A deliverability audit tells you exactly why your emails hit spam and what to fix first. Here is the full audit framework.
Cold Email Deliverability Audit: How to Check If Your Emails Actually Land in the Inbox A cold email deliverability audit is a systematic check of your sending infrastructure, domain health, authentication records, and sender reputation to determine whether your emails reach the primary inbox or land in spam. If your cold email reply rates are below 1% or you are seeing open rates under 30%, the problem is almost certainly deliverability, not copy. Before rewriting a single subject line, audit your infrastructure. This guide walks through the exact audit framework we use at HiveHub to diagnose deliverability problems, fix them in priority order, and get campaigns back to 90%+ inbox placement. What Is a Cold Email Deliverability Audit? A deliverability audit examines every layer between pressing send and the email appearing in someone's inbox. That includes DNS authentication records, domain reputation, sending volume patterns, bounce rates, spam complaint signals, and email content structure. Think of it like a pre-flight check. Every system needs to pass before you launch. Skip one and the whole campaign crashes before it starts. The audit answers three questions: Are your emails technically authenticated? Is your sender reputation healthy? Are your sending patterns triggering spam filters?