Why can't I register/integrate with my desired email provider?

if you're unable to register or integrate a supported email service provider because it’s greyed out or unselectable, the issue is likely tied to your current subscription plan specifically, certain advanced integrations require the instafloss feature, which is not included in the lite plan unless purchased as an add on email service providers requiring instafloss the following email service providers need instafloss for integration and are unavailable in the lite plan https //docs mailfloss com/how to connect mailup to mailfloss https //docs mailfloss com/how to connect autopilot to mailfloss https //docs mailfloss com/how to connect customerio to mailfloss https //docs mailfloss com/how to connect mailigen to mailfloss https //docs mailfloss com/how to connect remarkety to mailfloss https //docs mailfloss com/how to connect iterable to mailfloss https //docs mailfloss com/how to connect braze to mailfloss to resolve this issue, please refer to https //docs mailfloss com/adding instafloss as an add on for guidance on adding instafloss as an add on if you have any further questions or need additional assistance, feel free to contact our support team we're here to help!