On Thu, 13 Jul 2017 15:56:59 +0000 Charles Amstutz wrote: > Thanks, > > I was looking at the default RBL lists > > https://wiki.apache.org/spamassassin/DnsBlocklists > > But was looking for other things that are free for commercial use. I > found this that is possible. > > http://0spam.fusionzero.com/ > > but don't know if wanyone had experience with it, or could make other > recommendations.
You might try this one, it may be well suited to postscreen or outright rejection as it supposed to be quite conservative - I haven't had any FPs. header RCVD_IN_GBUDB eval:check_rbl('gbudb-lastexternal', 'truncate.gbudb.net.') describe RCVD_IN_GBUDB Listed in truncate.gbudb.net tflags RCVD_IN_GBUDB net score RCVD_IN_GBUDB 1.0 # adjust after testing