On 07/02/2014 10:47 AM, Steve Bergman wrote:
The DNSBL's are problematic because so many ISP's mail servers are on them. We get quite a few emails from employees at companies who's ISP's are on Spamhaus lists, or whatever, due to nothing that has anything to do with them.
I'm pretty sure, a huge amount of SA users trust Spamhaus' ZEN at smtp level for outright rejects.
If a sender's IP is listed @Spamhaus , he has a serious problem reaching many, many destinations. If he's been expoited, you get good evidence and fast delisting processsing and I have yet to see a real FP with ZEN.
Consider it being better a sender gets a hard reject than having msgs land in some spam folder and remain unseen.
but then...
