Hey @seedsnspades22! We don't have a built-in way of managing replies to emails sent via ConvertKit; that does need to be handled directly in your email provider (i.e. the provider you use for your sending email; not ConvertKit) at this time.
(Please feel free to file this as a feature request for our team here30, though!)
As an aside, I'm wondering if you might prefer to use a platform like Google Workspace39 for your business email instead of your current provider. Lots of people like it (including myself!) because it allows you to use the Gmail interface. Just wanted to mention it as a potential alternative! ☺️