Didn't find much info on searching so posting this. Today i found one box of my customer listed at dsbl RBL list. Now to get it removed, dsbl wants to send authorisation mail at abuse@[x.x.x.x] or postmaster@[x.x.x.x] Remember the brakets are there and that x.x.x.x is the ip for the customer server. I don't think it works at present on the box (i mean sending mail in that format). Any one ne ideas how to set that up ?