294847Re: greylisting generates error email?
- Aug 20, 2013On Tue, Aug 20, 2013 at 05:58:44AM CEST, LuKreme <kremels@...> said:
>Perfectly safe is the categorizing process is itself perfect.
> zen blocks these categories:
> SBL Direct UBE sources, spam operations & spam services
> CSS Direct snowshoe spam sources detected via automation
> CBL (3rd party exploits such as proxies, trojans, etc.)
> PBL End-user Non-MTA IP addresses set by ISP outbound mail policy
> SBL and CSS are confirmed spammers. CBL are confirmed exploited machines. PBL are IPs that the IP owner has classified as not allowed to send mail directly.
> Blocking all of those is perfectly safe.
ANd since nothing is perfect, you'll always have false positive.
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