Syntax: %bSET <nickname> AUTOMASK {ON|OFF}%b

This toggles auto-adding of new hostmasks ON/OFF.  If
%bAUTOMASK%b is ON, and you %bIDENTIFY%b from an
unknown host, the hostmask will automaticaly be added
to your %bACCESS%b list.
Note that settings should be usually applied to
%bmaster%b nickname.
