One of my favorite features is that it allows me to set up strict rules for emails from certain domains (like Gmail), without having them send through our main mail servers first - which can be pretty confusing at times! Sometimes I get stuck in loops where messages won't go out or come back as undeliverable because they are not allowed by policy settings but we have never been able do resolve those issues together directly via support team chat sessions either way? It's an interesting challenge since sometimes when you think there isn’t anything wrong about something being blocked/delivered incorrectly etc., after some digging around online one might find other people who also had this issue before solving their problem eventually too so maybe just try waiting until someone else has solved what was happening previously if possible :) Our system administrators use DMARcIN regularly now instead sending bulk spam.