You sat down, wrote the thing, hit send. Then nothing. Maybe you blamed the subject line. Maybe you decided your list doesn't care.
I see this all the time with the business owners I work with. The email was fine. It went to spam, or never showed up at all, because of a few settings tucked inside your domain that nobody ever told you about.
Gmail and Yahoo got strict about those settings, and they're at their strictest right now through the holidays. So let's look before the new year starts.
Takes about ten seconds. I only read public settings. Nothing gets changed or saved.
This check reads public DNS records, the same ones anyone can look up. Results are educational and can't promise where any single email lands. Before you change anything in your DNS, take a screenshot of what's there now or ask your web host for help.