If you are seeing "URIBL_BLOCKED" frequently in the Spam Report for
emails in MailWatch, it means that the nameserver you are using is not
allowed to access certain RBLs via SpamAssassin. In this case you may
want to switch to using a local nameserver if you are able to.
IMPORTANT: For your DNS to continue working with this configuration,
you must first configure named to run as a local caching nameserver on
your server (i.e. you must make sure that you allow localhost DNS
recursion in /etc/named.conf - your server admin should be able to do
this if it is not already configured this way).
Add 127.0.0.1 as the first
nameserver listed in /etc/resolv.conf, like this:
If you make this change and have not already been manually training
your bayes database, you might want to reset your bayes database at the
same time so that it becomes more accurate more quickly. Instructions
are in this FAQ