Fix Business Email Receiving Issue

My business email is hosted on Gmail under my own domain. Outgoing messages arrive without a problem, yet nothing ever reaches my inbox. I have not gone through the Gmail settings in depth and I’m unsure whether the fault sits in the account rules, the Google Workspace admin console, or missing MX / DNS records. I also don’t know if the DNS panel at my registrar is already set up correctly, but I can obtain whatever login details you may need.

What I need from you is straightforward: trace the cause of the blocked or mis-routed incoming mail, apply the necessary fixes (whether in Gmail filters, Google Workspace routing, SPF/MX records, or elsewhere), and prove that new messages are landing successfully. A short, plain-English summary of the changes you made will complete the job.

If additional verification steps—such as propagation checks, test sends from multiple providers, or tweaks to SPF/DKIM—are required, please include them so I have a clean bill of health going forward.