My mail/nectar

It sounds like you're referring to the concept of "mail" and "nectar"!

In ancient Greek mythology, the gods would send "nectar" (Greek: νέκταρ, nectar) to mortals as a gift, often in the form of ambrosia, a divine food that granted immortality and eternal youth. Nectar was also associated with the gods' own food and drink, which they would consume to maintain their divine powers.

On the other hand, "mail" refers to a type of protective covering, often made of metal or leather, worn by warriors or soldiers to defend themselves against harm.

Are you perhaps drawing a connection between the two, or is there something else on your mind?