/msg $C DNRSEARCH <action> <criteria> <value> [<criteria> <value> ...]
Searches through the current do-not-register list for those matching the specified criteria, and applies the specified action to them.  A list of actions can be found in $bhelp dnrsearch action$b and a list of criteria in $bhelp dnrsearch criteria$b.
$uSee Also:$u allowregister, dnrsearch action, dnrsearch criteria, noregister