This is a list a user can use to set custom maps checking. The list has the given (strict) format: maps-root:code,maps-root:code... Where maps-root is the root for the dns query (ie. dialups.mail-abuse.org.) and the code can be: '1' the connection is drooped soon ``0'' the connection is kept alive but only authenticated users can send mail '-S' the peer can send messages but a delay of S seconds is introduced between commands