Mannikin caremark mail

It seems like you're referring to a specific type of mail related to Mann-Kind Corporation and Caremark.

Mann-Kind Corporation is a biopharmaceutical company that develops and commercializes innovative therapies for patients with serious diseases. Caremark is a pharmacy benefits manager (PBM) that manages prescription drug benefits for health plans, employers, and government programs.

Given the context, I'm assuming you're asking about a specific type of mail related to Mann-Kind Corporation and Caremark, possibly related to prescription medication or patient care. Could you please provide more information or clarify what you're looking for?