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Ever since I started hosting my website on my own Plesk Server I have seen a pretty huge increase in spam. I'm using SPF, DNS-MX records checks, and Tarpitting, but I haven't seen a decrease in spam. I also have 3 or 4 DNS blacklists active.
Is there a specific list of DNS blacklists I should be using to prevent spam? And are there any other recommend settings I should use?
Thank you for your help!!!
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