i Register
In some senses, mailed is marked as rare. Watch for register when choosing this word.
adj
Armoured in, protected by, or made of mail.
[I]n the niches, instead of the effigies of mailed warriors, stood stuffed-out dresses, such as are worn by the fashionables of the day.
Resembling the scales of armor.
[…] from blossom of lime to perfumed bloom of acacia — darts the humming-bird, his coat of mailed feathers glowing like a gem.