Postfix woes with IPv6

Since adding IPv6 capabilities to our spam scanning system, we have had a handful of issues with customers running Postfix mail servers. In some versions of Postfix, the software will try to get a quad A records (AAAA) whether or not the mail server has IPv6...

AntiSpam: NJABL being shutdown

The ‘NJABL’ (Not Just Another Bogus List) has started the process of shutting down. This list is used by many spam filtering services and email systems to form part of a score or sometimes to outright block email based upon its source ip address. It is...