You searched for blockplayer
1. blockplayer
Syntax: block add <option> <player>
block remove <option> <player>
block options
block remove <player>
block clear
Blocking a player will block them from interacting with you. They will not
be able to use socials on you, invite you to groups, send you tells, buff
you, and so forth. The mail option blocks the player from sending or giving
you items.
If you don't want to see output from them on channels, use the ignore
command.
Typing block without an argument will list any players you are blocking.
It isn't possible to block an Immortal.
Another option available is the spam toggle: contactLevel. With this
option enabled, you can limit contact with accounts that are below a
certain level (they cannot send tells or beeps).