I once new a way of checking for an open relay by telneting into port 25 on the smtp server. I have since forgotten. Can anyone reffresh my memory as I dont want to leave my mail server open to ...
Bad idea, right?<BR><BR>Trouble is, I know that's a REALLY bad idea, but I am not sure how to explain this to someone who is not understanding what I am saying. One of our servers is being routinely ...
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