I’m in the market for an email service for my custom domain name. I only need one account. Below are my requirements. Any good suggestions?

• Cheap: Zoho, MXroute, and NameCheap seems to fit the bill.
• Good IP Repuation: I’m honestly not sure how to check this out if I don’t even know the shared IP addresses that the service uses. I imagine Google Workspace would be perfect but it’s too expensive.