On Thu, 21 Feb 2019 at 13:34, Marc Lijour via talk <talk@gtalug.org> wrote:
> Does anyone has insights about dealing with Spamhaus? > > I'm getting increasingly frustrated by being listed without explanation. > I run a very low bandwidth mail server and a website for my business. I > am running postfix with SPF, DKIM, and DMARC. I'd like to know what I am > missing. > Do you have a permanent static IP address? If not, you may occasionally be picking up a "dirty" IP address. Also, it seems to me that even permanent static IP addresses are not made the same. I get a feeling that some spam databases do not "like" certain ranges of IP addresses. Although I have no direct evidence of it, I suspect that these spam database sites run periodic checks on how much spam a subnet produces and when it exceeds some threshold the entire subnet is marked "dirty".
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