Tagged: list building

The Secret Test Behind Your Broken Email Deliverability

The Secret Test Behind Your Broken Email Deliverability

You hit send on a good email, one you spent real time getting right. Almost nobody opens it. The subject line was not the problem, and your list has not stopped caring. Somewhere between your outbox and their inbox, something quietly failed a test you never knew existed. Here is what that test checks, and the one habit that protects every email you send after this one.