When we query www.mxtoolbox.com/blacklists.aspx
using our external ip address we are listed on 9 sorbs entries and 1 sorbs-zombie. Our site is by no means intended to be a spam site.
When we login as a member to www.dnsbl.au.sorbs.net
we are told that we are not listed on their blacklist but we are listed on their dynamic ip space.
What is the best route to follow up this problem....do we try to contact our ISP to resolve why we cant send mail to a spcific web address or is there a better way of clearing our name from whatever blacklist is blocking certain mail that we are trying to send?