Request Credential API for Mailbox.org

It would help if there was a node for:

My use case:

I am missing a credential API for mailbox.org to retrieve emails and save and retrieve files in the cloud storage of this provider. Mailbox.org is a Germany-based secure provider with the European data center.

Any resources to support this?

Are you willing to work on this?

I have no coding experience, but I can help in validating and testing.