* Jaroslaw Grzabel <ja...@meil.me>: > >> unknown 550 5.1.2 Your reverse DNS entries are off > >> > And also, are you sure that unknown is OK ? I can see in logs that I've > got number of connections from unknown[IP_ADDRESS] but when I do > nslookup IP_ADDRESS they have PTR. So I don't want to reject them.
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