Can't mail legendary fish

I think I know what you're referring to!

In the popular online game "Animal Crossing: New Horizons," you can't mail legendary fish to other players. Legendary fish are special fish that can be caught in the game, and they are not tradeable or mailable.

However, you can show off your legendary fish catches to other players by displaying them in your Critterpedia, which is a virtual encyclopedia of all the fish, insects, and sea creatures you've caught in the game. You can also take photos of your legendary fish and share them with other players through the game's online features.

So while you can't mail legendary fish to other players, you can still share your excitement and pride in catching them with the Animal Crossing community!