Question : RBL lookup error

I'm getting all kinds of RBL lookup errors for valid email:

RBL lookup error: Host or domain name not found. Name service error for name=142.55.23[1~2.88.list.dsbl.org

Please help, as my users aren't getting all email.

Derek

Answer : RBL lookup error

Remove the lists.dsbl.org line, this RBL is offline for about a year and won't answer questions any more. After removing the line, don't forget "postfix reload".